Divergent Series, Summability and Resurgen...

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Beschreibung

Addressing the question how to ¿sum¿ a power series in one variable when it diverges, that is, how to attach to it analytic functions, the volume gives answers by presenting and comparing the various theories of k-summability and multisummability. These theories apply in particular to all solutions of ordinary differential equations.

The volume includes applications, examples and revisits, from a cohomological point of view, the group of tangent-to-identity germs of diffeomorphisms of C studied in volume 1. With a view to applying the theories to solutions of differential equations, a detailed survey of linear ordinary differential equations is provided, which includes Gevrey asymptotic expansions, Newton polygons, index theorems and Sibuyäs proof of the meromorphic classification theorem that characterizes the Stokes phenomenon for linear differential equations.
This volume is the second in a series of three, entitled Divergent Series, Summability and Resurgence. It is aimed at graduate students and researchers in mathematics and theoretical physics who are interested in divergent series, Although closely related to the other two volumes, it can be read independently.

Zusammenfassung

Provides a thorough discussion and comparison of the theories of k-summability and multisummability

Can be treated both as a reference book and as a tutorial on the theories of summability and their links to the formal and local analytic aspects of linear ordinary differential equations

Includes a discussion of the linear Stokes phenomenon

The theories are illustrated with many examples and over 70 color figures

Inhaltsverzeichnis

Avant-propos.- Preface to the three volumes.- Introduction to this volume.- 1 Asymptotic Expansions in the Complex Domain.- 2 Sheaves and ¿ech cohomology.- 3 Linear Ordinary Differential Equations.- 4 Irregularity and Gevrey Index Theorems.- 5 Four Equivalent Approaches to k-Summability.- 6 Tangent-to-Identity Diffeomorphisms.- 7 Six Equivalent Approaches to Multisummability.- Exercises.- Solutions to Exercises.- Index.- Glossary of Notations.- References.

Details

Erscheinungsjahr:	2016
Fachbereich:	Analysis
Genre:	Mathematik
Rubrik:	Naturwissenschaften & Technik
Medium:	Taschenbuch
Seiten:	296
Reihe:	Lecture Notes in Mathematics
Inhalt:	xxiii 272 S. 64 farbige Illustr. 272 p. 64 illus. in color.
ISBN-13:	9783319290744
ISBN-10:	3319290746
Sprache:	Englisch
Herstellernummer:	978-3-319-29074-4
Ausstattung / Beilage:	Paperback
Einband:	Kartoniert / Broschiert
Autor:	Loday-Richaud, Michèle
Auflage:	1st ed. 2016
Hersteller:	Springer International Publishing Lecture Notes in Mathematics
Maße:	235 x 155 x 17 mm
Von/Mit:	Michèle Loday-Richaud
Erscheinungsdatum:	29.06.2016
Gewicht:	0,452 kg

preigu-id: 104047901