birkhäuser basel springer basel okt 2012 (240 Ergebnisse)

Taschenbuch. Zustand: Neu. Neuware -In der Bundesrepublik Deutschland überwachen die Behörden der Länder die Einhaltung der Vorschriften, die für das Inverkehrbringen und die Anwendung von Pflanzenschutzmitteln gelten. Das Pflanzenschutz-Kontrollprogramm ist ein bundesweit harmonisiertes Programm zur Überwachung pflanzenschutzrechtlicher Vorschriften. Die Durchführung und Berichterstattung der Kontrollen erfolgten nach gemeinsamen Standards der Länder auf Grundlage eines abgestimmten Handbuches. Die Festlegung von Kontrolltatbeständen und die Betriebsauswahl erfolgt durch die Länder; zusätzlich werden bundesweite Kontrollschwerpunkte festgelegt. Der vorliegende Bericht fasst die Ergebnisse des Jahres 2011 zusammen. Bundesweit wurden in 2.545 Handelsbetrieben Verkehrskontrollen durchgeführt und in 5.367 Betrieben der Landwirtschaft, des Gartenbaus und der Forstwirtschaft Betriebs- oder Anwendungskontrollen vorgenommen. Im Rahmen der Überwachung der Verordnung über Pflanzenschutzmittel und Pflanzenschutzgeräte (Pflanzenschutzmittelverordnung) wurden des Weiteren 70.063 Pflanzenschutzgeräte von amtlichen bzw. amtlich anerkannten Kontrollstellen überprüft. Die Zusammensetzung und physikalische, chemische und technische Eigenschaften von 197 Pflanzenschutzmitteln wurden untersucht.¿Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 44 pp. Deutsch.

Taschenbuch. Zustand: Neu. Neuware -Die fachgerechte Erbebensicherung von Bauwerken ist heute nicht mehr eine Frage der Erkenntnisse, sondern eine Frage der Ausbildung von Bauingenieuren und Architekten und somit der Umsetzung vorhandenen Wissens in die Praxis. Durch wenige gezielte Massnahmen konzeptioneller und konstruktiver Art sowie durch eine problemgerechte Berechnung und Bemessung kann das Schadenrisiko drastisch vermindert und ein hoher Schutzgrad gegen Einsturz erreicht werden. Das Buch ist auf die Bedürfnisse des praktisch tätigen Bauingenieurs ausgerichtet; mit seiner starken Gewichtung des erbebengerechten Entwurfs hilft es, konzeptionelle Fehler und Mängel zu vermeiden, da diese auch durch eine noch so ausgeklügelte ingenieurmässige Berechnung und Bemessung nicht kompensiert werden können. Das Buch gibt aber auch zahlreiche Hinweise zu aktuellen Forschungsthemen.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 316 pp. Deutsch.

Buch. Zustand: Neu. Neuware -Die in Europa bis Ende der 1980er Jahre bestehende Grenze zwischen unterschiedlichen Gesellschaftssystemen, insbesondere die innerdeutsche Grenze, hat die individuellen Biografien von Bürgern vital beeinflusst. Auch die Wissenschaftler, u.a. die Mathematiker, waren weitaus mehr betroffen, als nach außen hin sichtbar war. Der Autor, der das Ende der Teilung in der Mitte seiner beruflichen Laufbahn in Berlin erlebte, schildert in autobiografischen Skizzen die Spezifik dieser Situation, anknüpfend an Inhalte der Ausbildung in der Schule und des Studiums im Osten Deutschlands, bis hin zu Innenansichten aus Institutionen wie dem Karl-Weierstrass-Institut der Akademie der Wissenschaften in Berlin, anschließend der Max-Planck-Arbeitsgruppe Partielle Differentialgleichungen und Komplexe Analysis, sowie dem Institut für Mathematik an der Universität Potsdam. Beleuchtet werden weiterhin die erlebten Sichten der Gesellschaftssysteme auf eine exakte Wissenschaft wie die Mathematik, die Organisation in Instituten, Haltungen zur Zweckbestimmung reiner und angewandter Forschung in der Mathematik, Aspekte der Wissenschaftsförderung, sowie individuelle und teilweise kontroverse Standpunkte. Da Probleme um die Mathematik, etwa ihre Triebkräfte, das Zusammenspiel ihrer Spezialgebiete und ihr Einfluss auf Naturwissenschaften, Technologie und viele Bereiche des täglichen Lebens nicht immer leicht verständlich gemacht werden können, ist in der Darstellung ein überwiegend unterhaltsamer und teilweise unkonventioneller Ton gewählt. Er soll auch die Tragik ein wenig vergessen machen, die mit Verlusten von Potentialen und wissenschaftlichen Entwicklungsmöglichkeiten in dem vergangenen System verbunden war.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 268 pp. Deutsch.

Taschenbuch. Zustand: Neu. Neuware -Der Autor informiert über die unterschiedlichen Bestimmungen in den Landesbauordnungen, Normen und Gesetzen sowie über die brandtechnischen Eigenschaften von Baustoffen und Bauteilen. Neben den Anforderungen für den Wohnungsbau werden auch die Bestimmungen für den Industrie- und Sonderbau sowie die Möglichkeiten und Probleme bei der Sanierung von Gebäuden behandelt.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 360 pp. Deutsch.

Taschenbuch. Zustand: Neu. Neuware -Die Einsatzmöglichkeiten von Holz im Außenbereich sind vielfältig. Wesentliche Anwendungen sind Überdachungen von Freiräumen, Fassaden, Türme, Brücken, aber auch sogenannte kleine Holzbauwerke wie Balkone, Pergolen, Zäune und Palisaden. Dabei stellen Freibewitterung und zum Teil auch Erdkontakt hohe Belastungen für den Baustoff Holz dar. Die Schutzmöglichkeiten für das exponierte Holz und das Vermeiden von konstruktiven Fehlern und damit letztendlich von Schäden sind deshalb Schwerpunkte dieses Buches. Der Holzschutz wird hier im umfassenden Sinne gesehen: die Wahl der Holzart, die baukonstruktive Ausbildung, bei Erfordernis der chemische Schutz und eine schützende Oberflächenbehandlung. Bei der Einstufung der Bauteile in Gefährdungsklassen, bei der Einordnung der Holzarten nach ihrer Dauerhaftigkeit und der Erfordernis oder besser Nichterfordernis eines chemischen Schutzes werden die Euro-Normen zugrunde gelegt und damit das aktuelle und zukünftige Regelwerk. Für die Beurteilung des Brandverhaltens und des Brandschutzes von Außenbauteilen wird die neue Musterbauordnung herangezogen, die dem Holzbau neue Möglichkeiten eröffnet. Zahlreiche Anwendungsbeispiele werden durch Fotos und Skizzen erläutert.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 208 pp. Deutsch.

Taschenbuch. Zustand: Neu. Neuware -Die Autoren haben aktuelle Ergebnisse aus der Mauerwerksforschung der Schweiz und internationale Erfahrungen und Entwicklungen bei Bemessungsverfahren und Bewehrungssystemen aufgegriffen und für die Praxis in durchschaubare, nachvollziehbare Konzepte aufbereitet. Sie berichten über Versuchsresultate unter verschiedenen, kombinierten Beanspruchungen und untersuchen Mauerwerksbauten, die mit Stabbewehrungen und Kunstofflamellen verstärkt sind. Grenzzustände der Tragsicherheit und der Gebrauchstauglichkeit werden getrennt ermittelt. Der Vergleich mit früheren Normierungsvorschriften ermöglicht eine nachträgliche Beurteilung des Gefährdungspotentials von Mauerwerksbauten, die mit alten Normenkonzepten bemessen worden sind. Dies ist insbesondere bei Umbauten und Indstandsetzungsmaßnahmen von grosser Bedeutung. Die Autoren bieten zahlreiche Beispiele zur Bemessung und geben wertvolle Hinweise für die Konstruktion.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 220 pp. Deutsch.

Taschenbuch. Zustand: Neu. Neuware -Euklid, der Geometer aus Alexandria, und sein uberwiegend geometrisches literarisches Werk bilden den Mittelpunkt dieses Buches zur Geschichte derMathematik. Es ist bis heute nicht mit letzter Sicherheit geklart, ob eseinen Mathematiker mit dem Namen Euklid wirklich gegeben, wann er gelebthat und ob die ihm zugeschriebenen Lehrbucher zur Mathematik und zurmathematischen Physik tatsachlich nur von ihm verfasst wurden. Trotz dieserEinschrankungen breitet der Autor das derzeit verfugbare Wissen uber dievoreuklidische griechische Mathematik, die Traditionslinien dereuklidischen Geometrie und die uber Jahrhunderte andauerndeWirkungsgeschichte der euklidischen Werke umfassend aus. Dabei wird anvielen Stellen deutlich, wie unzureichend unsere Kenntnisse uber dieRezeptionsgeschichte und wie luckenhaft das antike Quellenmaterial auch nach zweitausend Jahren immer noch sind. Das Buch spurt den vielfaltigenhistorischen und interkulturellen Aspekten und Facetten der Mathematiknach.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 276 pp. Deutsch.

Taschenbuch. Zustand: Neu. Neuware -The goal of this book is to present some modern aspects of nonlinear analysis. Some of the material introduced is classical, some more exotic. We have tried to emphasize simple cases and ideas more than complicated refinements. Also, as far as possible, we present proofs that are not classical or not available in the usual literature. Of course, only a small part of nonlinear analysis is covered. Our hope is that the reader - with the help of these notes - can rapidly access the many different aspects of the field. We start by introducing two physical issues: elasticity and diffusion. The pre sentation here is original and self contained, and helps to motivate all the rest of the book. Then we turn to some theoretical material in analysis that will be needed throughout (Chapter 2). The next six chapters are devoted to various aspects of elliptic problems. Starting with the basics of the linear theory, we introduce a first type of nonlinear problem that has today invaded the whole mathematical world: variational inequalities. In particular, in Chapter 6, we introduce a simple theory of regularity for nonlocal variational inequalities. We also attack the question of the existence, uniqueness and approximation of solutions of quasilinear and mono tone problems (see Chapters 5, 7, 8). The material needed to read these parts is contained in Chapter 2. The arguments are explained using the simplest possible examples.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 268 pp. Englisch.

Taschenbuch. Zustand: Neu. Neuware -Cet ouvrage, qui est la these de doctorat d'Etat que j'ai soutenue devant l'Universite de Provence aAix-en-Provence le 30 juin 1988, mais alaquelle j'ai toutefois apporte posterieurement certaines rectifications, a pour objet la comparaison structurale du Tractatus de Wittgenstein avec I'Ethique de Spinoza. Monsieur le Professeur Gilles-Gaston Granger, qui m'a confie le soin de cette etude comparative et en a suivi I'elaboration, et auquel je renou velle ici l'expression de ma respectueuse gratitude, a perl;u la pensee de Wittgenstein comme une transposition moderne de la doctrine de Spinoza et illui a paru interessant de comparer les oeuvres representatives de ces deux auteurs que sont le Tractatus et l'Ethique. Les travaux de Martial Gueroult m'ont guide dans mes recherches en vue d'approfondir le systeme de I'Ethique et j'ai egalement mis aprofit les critiques qui ont ete formulees ala soutenance de ma these par Madame le Professeur Elisabeth Schwartz, presidente du jury. Je remercie l'Universite de Bäle, la Freiwillige Akademische Gesell schaft aBäle et la fondation Berta Hess-Cohn aBäle qui ont bien voulu financer I'edition de cet ouvrage. Et je suis reconnaissant aux Editions Birkhäuser a Bäle et particulierement a Monsieur Albert Gomm de I'at tention qu'ils ont apportee ason impression tout en respectant, dans la mesure du possible, la presentation materielle de ma these de doctorat.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 424 pp. Englisch.

Taschenbuch. Zustand: Neu. Neuware -eine Assistentenstelle bei GERHARD HARIG am bereits 1906 gegründeten Karl-Sudhoff-Institut für Geschichte der Medizin und Naturwissenschaften in Leipzig, die er anderen Angeboten (z. B. beim Flugzeugbau) vorzog. Nach dem Tode von Professor HARIG bekam HANS WUSSING 1967 (als einziger habilitierter Wissenschaftshistoriker in der DDR) eine Dozentur für Geschichte der Mathematik und der Naturwissenschaften und wurde zum kommissarischen Direktor des Sudhoff-Instituts eingesetzt. Ein Jahr später wurde er zum a. o. Professor für Geschichte der Mathematik und der Naturwissenschaften berufen, 1970 erfolgte die Ernennung zum ordent lichen Professor. Von 1977 bis 1982 war er Direktor des Sudhoff-Instituts und ist seit 1982 Leiter der Abteilung für Geschichte der Mathematik und der Naturwissenschaften. Die Reihe von WUSSINGs Publikationen ist lang. Eine Liste seiner Veröffentlichungen bis 1985 findet sich in der Zeitschrift NTM, Bd. 24 (1987), S. 1-5. Es ist hier nicht der Ort, all seine Arbeiten im einzelnen zu würdigen. Erwähnt seien nur die wichtigsten Buchpublikationen: 1962 erschien bei B. G. Teubner Leipzig die Mathematik in der Antike. WUSSING verfaßte Biographien von COPERNICUS, GAUSS, NEWTON und ADAM RIES. Auch seine neueste Publikation hat mit dem bekannten deutschen Rechenmeister zu tun: Die Goß von ADAM RIES konnte er trotz schwie rigster Umstände zusammen mit WOLFGANG KAUNZNER noch rechtzeitig im Jubiläumsjahr 1992 herausgeben. WUSSING ist auch ein erfolgreicher Hochschullehrer.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 800 pp. Deutsch.

Taschenbuch. Zustand: Neu. Neuware -The discoveries of the past decade have opened new perspectives for the old field of Hamiltonian systems and led to the creation of a new field: symplectic topology. Surprising rigidity phenomena demonstrate that the nature of symplectic map pings is very different from that of volume preserving mappings which raised new questions, many of them still unanswered. On the other hand, due to the analysis of an old variational principle in classical mechanics, global periodic phenomena in Hamiltonian systems have been established. As it turns out, these seemingly differ ent phenomena are mysteriously related. One of the links is a class of symplectic invariants, called symplectic capacities. These invariants are the main theme of this book which grew out of lectures given by the authors at Rutgers University, the RUB Bochum and at the ETH Zurich (1991) and also at the Borel Seminar in Bern 1992. Since the lectures did not require any previous knowledge, only a few and rather elementary topics were selected and proved in detail. Moreover, our se lection has been prompted by a single principle: the action principle of mechanics. The action functional for loops in the phase space, given by 1 Fh) = J pdq -J H(t, 'Y(t)) dt , 'Y 0 differs from the old Hamiltonian principle in the configuration space defined by a Lagrangian. The critical points of F are those loops 'Y which solve the Hamiltonian equations associated with the Hamiltonian H and hence are the periodic orbits.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 364 pp. Englisch.

Taschenbuch. Zustand: Neu. Neuware -Biomolecular studies are the trial of Man to understand how Nature manages information at the molecular level. The understanding of molecular informa tion handling in nature is essential for the molecular optimization in chem istry, molecular biology, molecular pharmacology and therefore - as an ex ample - for the development of specifically acting drugs. The famous recent method of technical information management is digital electronics. Over the past few years, evidence has arisen that computerized and molecular information managements have many similar and overlapping aspects. For example, both technology and nature use digitized information and both use small structures for the efficient handling of information. Furthermore, they optimize their processes in order to gain a maximum of information with a minimum of invested energy. During the last two decades, novel experimental techniques in biomolec ular sciences have paved the way for artificial biomolecular optimization. In the same time interval, the progress of micro system technology has been extended from the field of digital electronics and sensing to micro liquid hand ling, and the field of chip-supported substance handling began. It appears that the 'marriage' of physical micro technology and molecular processing will be consummated soon. The contact of both fields has been realized in for ex ample DNA chips. Such connections will also become relevant in additional fields in the near future. Biomolecular investigations are the first to profit from these fast growing scientific and technical connections between micro systems and molecular sciences.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 608 pp. Englisch.

Taschenbuch. Zustand: Neu. Neuware -In November 2001 the Mathematical Research Center at Oberwolfach, Germany, hosted the third Conference on Mathematical Models and Numerical Simulation in Electronic Industry. It brought together researchers in mathematics, electrical engineering and scientists working in industry.The contributions to this volume try to bridge the gap between basic and applied mathematics, research in electrical engineering and the needs of industry.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 380 pp. Englisch.

Taschenbuch. Zustand: Neu. Neuware -This volume began as the last part of a one-term graduate course given at the Fields Institute for Research in the Mathematical Sciences in the Autumn of 1993. The course was one of four associated with the 1993-94 Fields Institute programme, which I helped to organise, entitled 'Artin L-functions'. Published as [132]' the final chapter of the course introduced a manner in which to construct class-group valued invariants from Galois actions on the algebraic K-groups, in dimensions two and three, of number rings. These invariants were inspired by the analogous Chin burg invariants of [34], which correspond to dimensions zero and one. The classical Chinburg invariants measure the Galois structure of classical objects such as units in rings of algebraic integers. However, at the 'Galois Module Structure' workshop in February 1994, discussions about my invariant (0,1 (L/ K, 3) in the notation of Chapter 5) after my lecture revealed that a number of other higher-dimensional co homological and motivic invariants of a similar nature were beginning to surface in the work of several authors. Encouraged by this trend and convinced that K-theory is the archetypical motivic cohomology theory, I gratefully took the opportunity of collaboration on computing and generalizing these K-theoretic invariants. These generalizations took several forms - local and global, for example - as I followed part of number theory and the prevalent trends in the 'Galois Module Structure' arithmetic geometry.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 324 pp. Englisch.

Taschenbuch. Zustand: Neu. Neuware -It is a great pleasure for me to introduce this great deal of information from various insti manual for the diagnosis of parasites of domes tutes and universities. tic animals. It is a unique publication in many The result is an impressively comprehen respects. Books concerning parasitic anima I sive, beautifully illustrated and, above all high diseases - comprehensive textbooks, but also ly serviceable manual. It is easy to consult. Its field manuals - abound. These generally deal systematic and colour-coded layout allows the with aetiology, c1inical signs and pathology, as user to steer swiftly and surely through a vast weil as control and treatment. However, while amount of information. Clinical pictures and methods for diagnosis are often mentioned, figures show the parasite stage of diagnostic these are rarely sufficiently practical and spe interest, facilitating a rapid and accurate diag cific to allow the person ne I in field laborato nosis. The book has been designed to be used ries to reach a concise, rapid dia gnosis of the by veterinarians and technicians, by teachers parasite species involved in any particular case. and students - in fact, by anyone dealing with Parasitic Infections of Domestic Animals suc the diagnosis of diseases in domestic animals. ceeds in redressing these shortcomings.Springer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 440 pp. Englisch.

Taschenbuch. Zustand: Neu. Neuware -With the number of natural carotenoid structures reported rising above 700, there is a clear need for a single reference work containing data on all these compounds. This Handbook includes all natural carotenoids and common isolation artefacts for which structures have been assigned up to the end of 2001. For each compound, it provides selected key references and critically assessed information about natural occurrence and isolation, and spectroscopic data for identification. A standard full-page entry is given for each compound that has been characterised unambiguously, showing Common name IUPAC name Structure, including stereochemistry, when assigned Spectroscopic data: UV/Vis (with illustration); MS; CD; NMR (type and references) Chemical synthesis (references) Natural sources and outline of isolation procedure Remarks, e.g. further spectroscopic data, stability, properties, derivatives Selected key referencesSpringer Basel AG in Springer Science + Business Media, Heidelberger Platz 3, 14197 Berlin 664 pp. Englisch.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -'Fractals in Biology and Medicine' explores the potential of fractal geometry for describing and understanding biological organisms, their development and growth as well as their structural design and functional properties. It extends these notions to assess changes associated with disease in the hope to contribute to the understanding of pathogenetic processes in medicine. The book is the first comprehensive presentation of the importance of the new concept of fractal geometry for biological and medical sciences. It collates in a logical sequence extended papers based on invited lectures and free communications presented at a symposium in Ascona, Switzerland, attended by leading scientists in this field, among them the originator of fractal geometry, Benoit Mandelbrot. 'Fractals in Biology and Medicine' begins by asking how the theoretical construct of fractal geometry can be applied to biomedical sciences and then addresses the role of fractals in the design and morphogenesis of biological organisms as well as in molecular and cell biology. The consideration of fractal structure in understanding metabolic functions and pathological changes is a particularly promising avenue for future research. 397 pp. Englisch.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -One of the key concerns in modern control theory is the design of steering strategies. The implementation of such strategies is done by a regulator. Presented here is a self-contained introduction to the mathematical background of this type of regulator design. The topics selected address the matter of greatest interest to the control community, at present, namely, when the design objective is the reduction of the influence of exogeneous disturbances upon the output of the system. In a first scenario the disturbance signal is regarded as a deterministic time series with known dynamics but unknown parameters. The design objective is then the asymptotic disturbance compensation. In a second scenario, no information about the disturbance signal is available apart from some bounds. Here, in an H-approach, control strategies are worked out which will prove efficient for all such disturbances. The intention of this book is to present ideas and methods on such a level that the beginning graduate student will be able to follow current research. New results are included, especially for nonlinear control systems, and as a service to the reader, an extensive appendix presents topics from linear algebra, invariant manifolds and calculus of variations, information which is hardly to be found in standard textbooks. Contents: Introduction - The problem of output regulation - Introduction - Problem statement - Output regulation via full information - Output regulation via full error feedback - A particular case - Well-posedness and robustness - The construction of a robust regulator - Disturbance attenuation via H-methods - Introduction - Problem statement - A characterization of the L2-gain of a linear system - Disturbance attenuation via full information - Disturbance attenuation via measured feedback - Full information regulators - Problem statement - Time-dependent control strategies - Examples - Time-independent control strategies- The local case - Nonlinear observers - Problem statement - Time-dependent observers - Error feedback regulators - Examples - Nonlinear H-techniques - Introduction - Construction of the saddle-point - The local scenario - Disturbance attenuation via linearization - Matrix equations - Linear matrix equations - Algebraic Riccati equations - Invariant manifolds - Existence theorem - Outflowing manifolds - Asymptotic phase - Convergence for T - A special case - Dichotomies and Lyapunov functions - Hamilton-Jacobi-Bellman-Isaacs equation - Introduction - Method of characteristics - The equation of Isaacs - The Hamiltonian version of Isaacs' equation - Bibliography 168 pp. Englisch.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Band XIb-2 ist - abgesehen von einigen Ergdnzungen zu den Bdnden XIa und XIb-1 - den Sekunddrstoffen der Papilionoideae gewidmet und bietet einen wohl einmaligen berblick ]ber die Chemotaxonomie und die sekunddren Inhaltsstoffe dieser Pflanzengruppe. Er ist daher von speziellem Interesse f]r Leguminosenforscher, Pharmakologen, Phytochemiker und Ethnobotaniker. Wie die Bdnde XIa und XIb-1 enthdlt auch dieser Band zahlreiche Literaturhinweise und ein Register mit taxonomischem Index und Stichwortverzeichnis. Dieser letzte Band stellt nach etwa vierzigjdhriger Arbeit den Abschluss der Chemotaxonomie der Pflanzen von Robert Hegnauer dar. Der erste Band erschien 1962; bei der Aufnahme des Autors in die Leopoldina (1972) waren sechs Bdnde abgeschlossen, die alle Familien der hvheren Pflanzen mit Ausnahme der Leguminosen ber]cksichtigten. Diesen Bdnden folgten drei Nachtragsbdnde und ein Generalregister sowie drei Bdnde ]ber Leguminosen. 504 pp. Deutsch.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -At the time of David Hilbert's death in 1943, his leading disciple, Her mann Weyl, wrote that ' . . . the era of mathematics upon which he impressed the seal of his spirit and which is now sinking below the horizon achieved a more perfect balance than prevailed before and after, between the mastering of concrete problems and the formation of general abstract concepts. 'l Weyl attributed this 'happy equilibrium' in no small part to Hilbert 's work and its influence, adding that 'no mathematician of equal stature has risen from our generation. ,2 Surely, it would be difficult to exaggerate the importance of Hilbert's contributions to twentieth-century mathematics or even to conceive of what mathematics today would be like without them. He overturned the concep tual framework of older fields ranging from invariant theory and algebraic number theory to the foundations of geometry. He rehabilitated the Dirich let Principle, propelled integral equation theory to the forefront of active research, derived the field equations governing Einstein's general theory of relativity, created modern proof theory and metamathematics, and through out his career he championed the power and efficacy of the axiomatic method not only for mathematics but for all of the exact sciences. Every educated mathematician knows something about Hilbert space, the Hilbert problems, and Hilbert 's formalist program. 101 pp. Deutsch.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The controversy between the wave theory and the emission theory of light early in the nineteenth century has been a subject of numerous studies. Yet many is sues remain unclear, in particular, the reasons for rejecting Young's theory of light. It appears that further progress in the field requires a better grasp of the overall situation in optics and related subjects at the time and a more thorough study of every factor suggested to be of importance for the dispute. This book is intended to be a step in this direction. It examines the impact of the concept of interference of light on the development of the early nineteenth century optics in general, and the theory of light, in particular. This is not a his tory of the wave theory of light, nor is it a history of the debate on the nature of light in general: it covers only that part of the controversy which involved the concept of interference. Although the book deals with a number of scientists, scientific institutions, and journals, its main character is a scientific concept, the principle of interference. While discussing the reasons for accepting or rejecting this concept I have primarily focused on scientific factors, although in some cases the human factor is examined as well. The book is a revised Ph. D. dissertation (University of Minnesota, 1984) writ ten under Alan E. Shapiro. 271 pp. Englisch.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -George Boole (1815-1864) is well known to mathematicians for his research and textbooks on the calculus, but his name has spread world-wide for his innovations in symbolic logic and the development and applications made since his day. The utility of 'Boolean algebra' in computing has greatly increased curiosity in the nature and extent of his achievements. His work is most accessible in his two books on logic, 'A mathematical analysis of logic' (1947) and 'An investigation of the laws of thought' (1954). But at various times he wrote manuscript essays, especially after the publication of the second book; several were intended for a non-technical work, 'The Philosophy of logic', which he was not able to complete. This volume contains an edited selection which not only relates them to Boole's publications and the historical context of his time, but also describes their strange history of family, followers and scholars have treid to confect an edition. The book will appeal to logicians, mathematicians and philosophers, and those interested in the histories of the corresponding subjects; and also students of the early Victorian Britain in which they were written. 236 pp. Englisch.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -10 in denen meine Beobachtungen meine Schlüsse zu stützen scheinen. Aber ich achte das Urteil des Lesers und will ihn nicht zwingen oder auf irgendeine unsaubere Weise dazu bringen, meine Schlüsse anzu nehmen. Natürlich erheben die hier gebotenen Ansichten keinen Anspruch auf Endgültigkeit. Ich könnte in der Tat eine Reihe von Stellen ange ben, wo ich klar empfinde, daß eine größere oder kleinere Verbesse rung am Platz wäre. Ich glaube jedoch, daß die Hauptrichtung richtig ist, und ich hoffe, daß die Ausführungen und vor allem die Beispiele in diesem Werk dazu beitragen mögen, die 'Doppelnatun und die 'komplementären Aspekte) plausiblen, insbesondere induktiven Schließens, zu erhellen, das zuweilen als 'objektiv) und zuweilen als 'subjektiv) erscheint. Stanford University Georg P6lya Mai 1953 VORWORT ZUR ZWEITEN AUFLAGE Die vorliegende zweite Auflage wurde erweitert durch einen An hang. Dieser enthält einen Aufsatz 'Heuristische Schlußweisen in der Zahlentheorie), entnommen dem American Mathematical Monthly mit der Genehmigung des herausgebenden Vereins, und zusätzliche Bemerkungen und Aufgaben zu verschiedenen Kapiteln. Herzlichen Dank Fräulein Dr. A. Roth für die gewissenhafte Über setzung und Frau H. Bretscher für freundliche Hilfe. 326 pp. Deutsch.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -When this book was first published (in Russian), it proved to become the fountainhead of a major stream of important papers in mathematics, physics and even chemistry; indeed, it formed the basis of new methodology and opened new directions for research. The present English edition includes new examples of applications to physics, hitherto unpublished or available only in Russian. Its central mathematical idea is to use topological methods to analyze isotropic invariant manifolds in order to obtain asymptotic series of eigenvalues and eigenvectors for the multi-dimensional Schrödinger equation, and also to take into account the so-called tunnel effects. Finite-dimensional linear theory is reviewed in detail. Infinite-dimensional linear theory and its applications to quantum statistics and quantum field theory, as well as the nonlinear theory (involving instantons), will be considered in a second volume. 304 pp. Englisch.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -These notes are based on lectures given at the University of Virginia over the past twenty years. They may be viewed as a course in function theory for nonspecialists. Chapters 1-6 give the function-theoretic background to Hardy Classes and Operator Theory, Oxford Mathematical Monographs, Oxford University Press, New York, 1985. These chapters were written first, and they were origi nally intended to be a part of that book. Half-plane function theory continues to be useful for applications and is a focal point in our account (Chapters 5 and 6). The theory of Hardy and Nevanlinna classes is derived from proper ties of harmonic majorants of subharmonic functions (Chapters 3 and 4). A selfcontained treatment of harmonic and subharmonic functions is included (Chapters 1 and 2). Chapters 7-9 present concepts from the theory of univalent functions and Loewner families leading to proofs of the Bieberbach, Robertson, and Milin conjectures. Their purpose is to make the work of de Branges accessible to students of operator theory. These chapters are by the second author. There is a high degree of independence in the chapters, allowing the material to be used in a variety of ways. For example, Chapters 5-6 can be studied alone by readers familiar with function theory on the unit disk. Chapters 7-9 have been used as the basis for a one-semester topics course. 250 pp. Englisch.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume contains a selection from the papers presented at the Fourth European Multigrid Conference, held in Amsterdam, July 6-9,1993. There were 78 registered participants from 14 different countries, and 56 presentations were given. The preceding conferences in this series were held in Cologne (1981, 1985) and in Bonn (1990). Also at the other side of the Atlantic special multigrid conferences are held regularly, at intervals of two years, always in Copper Mountain, Colorado, US. The Sixth Copper Mountain Conference on Multigrid Methods took place in April, 1993. Circumstances prevented us from putting a larger time interval between the Copper and Amsterdam meetings. The next European meeting is planned in 1996, a year later than the next Copper Meeting. When the first multigrid conference was held in 1981 there was no doubt about the usefulness of a conference dedicated specially to multigrid, because multigrid was a new and relatively unexplored subject, still in a pioneering stage, and pursued by specialists. The past twenty years have shown a rapid growth in theoretical understanding, useful applications and widespread acceptance of multi grid in the applied disciplines. Hence, one might ask whether there is still a need today for conferences specially dedicated to multigrid. The general consensus is that the answer is affirmative. New issues have arisen that are best addressed or need also be addressed from a special multigrid point of view. 358 pp. Englisch.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The true history of physics can only be read in the life stories of those who made its progress possible. Matvei Bronstein was one of those for whom the vast territory of theoretical physics was as familiar as his own home: he worked in cosmology, nuclear physics, gravitation, semiconductors, atmospheric physics, quantum electrodynamics, astro physics and the relativistic quantum theory. Everyone who knew him was struck by his wide knowledge, far beyond the limits of his trade. This partly explains why his life was closely intertwined with the social, historical and scientific context of his time. One might doubt that during his short life Bronstein could have made truly weighty contributions to science and have become, in a sense, a symbol ofhis time. Unlike mathematicians and poets, physicists reach the peak oftheir careers after the age of thirty. His thirty years of life, however, proved enough to secure him a place in theGreaterSovietEncyclopedia. In 1967, in describing the first generation of physicists educated after the 1917 revolution, Igor Tamm referred to Bronstein as 'an exceptionally brilliant and promising' theoretician [268]. 208 pp. Englisch.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book is dedicated to the memory of an outstanding mathematician and personality, Vladimir Petrovich Potapov, who made important contributions to and exerted considerable influence in the areas of operator theory, complex analysis and their points of juncture. The book commences with insightful biographical material, and then presents a collection of papers on different aspects of operator theory and complex analysis covering those recent achievements of the Odessa-Kharkov school in which Potapov was very active. The papers deal with interrelated problems and methods. The main topics are the multiplicative structure of contractive matrix and operator functions, operators in spaces with indefinite scalar products, inverse problems for systems of differential equations, interpolation and approximation problems for operator and matrix functions. The book will appeal to a wide group of mathematicians and engineers, and much of the material can be used for advanced courses and seminars. 212 pp. Englisch.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This volume contains a selection of papers in modern operator theory and its applications. Most of them are directly related to lectures presented at the Inter national Workshop on Operator Theory and its Applications held at the University of Groningen (IWOTA-98) in Groningen, the Netherlands, from June 30-July 3, 1998. The workshop was attended by 97 mathematicians-of which 12 were PhD or postdoctoral students-from 19 countries. The program consisted of 19 plenary lectures of 40 minutes and 72 lectures of 30 minutes in 4 parallell sessions. The present volume reflects the wide range and rich variety of topics presented and discussed at the workshop. The papers deal with operator polynomials and analytic operator functions, with spectral problems of (partial) differential oper ators and related operator matrices, with interpolation, completion and extension problems, with commutant lifting and dilation, with Ricatti equations and real ization problems, with scattering theory, with problems from harmonic analysis, and with topics in the theory of reproducing kernel spaces and of spaces with an indefinite metric. All papers underwent the usual refereeing process. 558 pp. Englisch.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -22 papers on control of nonlinear partial differential equations highlight the area from a broad variety of viewpoints. They comprise theoretical considerations such as optimality conditions, relaxation, or stabilizability theorems, as well as the development and evaluation of new algorithms. A significant part of the volume is devoted to applications in engineering, continuum mechanics and population biology. 402 pp. Englisch.