On the Foundations of Nonlinear Generalized Functions I and II (Memoirs of the American Mathematical Society, Number 729) - Softcover

Eva Farkas; Michael Kunziger; Roland Steinbauer

Softcover

ISBN 10: 0821827294 ISBN 13: 9780821827291

Verlag: American Mathematical Society, 2001

Inhaltsangabe

In part 1 we construct a diffeomorphism invariant (Colombeau-type) differential algebra canonically containing the space of distributions in the sense of L. Schwartz. Employing differential calculus in infinite dimensional (convenient) vector spaces, previous attempts in this direction are unified and completed. Several classification results are achieved and applications to nonlinear differential equations involving singularities are given. Part 2 gives a comprehensive analysis of algebras of Colombeau-type generalized functions in the range between the diffeomorphism-invariant quotient algebra ${\mathcal G}^d = {\mathcal E}_M/{\mathcal N}$ introduced in part 1 and Colombeau's original algebra ${\mathcal G}^e$.Three main results are established: first, a simple criterion describing membership in ${\mathcal N}$ (applicable to all types of Colombeau algebras) is given; second, two counterexamples demonstrate that ${\mathcal G}^d$ is not injectively included in ${\mathcal G}^e$; and finally, it is shown that in the range ""between"" ${\mathcal G}^d$ and ${\mathcal G}^e$ only one more construction leads to a diffeomorphism invariant algebra. In analyzing the latter, several classification results essential for obtaining an intrinsic description of ${\mathcal G}^d$ on manifolds are derived.

Details zur Ausgabe

• Verlag: American Mathematical Society
• Erscheinungsdatum: 2001
• Sprache: Englisch
• ISBN 10: 0821827294
• ISBN 13: 9780821827291
• Einband: Taschenbuch
• Anzahl der Seiten: 93
• Herausgeber: Michael Grosser
• Kontakt zum Hersteller: Nicht verfügbar
• Verantwortliche Person: Nicht verfügbar