The Analysis of Linear Partial Differential Operators II

Author: Lars Hörmander
Publisher: Springer Science & Business Media
ISBN: 3540225161
Release Date: 2004-11-17
Genre: Mathematics

Vol. II of Lars Hörmander's 4-volume treatise is mainly devoted to operators with constant coefficients. From the reviews: "...these volumes are excellently written and make for greatly profitable reading. For years to come they will surely be a main reference for anyone wishing to study partial differential operators." Mathematical Reviews

Analytic Algebraic and Geometric Aspects of Differential Equations

Author: Galina Filipuk
Publisher: Birkhäuser
ISBN: 9783319528427
Release Date: 2017-06-23
Genre: Mathematics

This volume consists of invited lecture notes, survey papers and original research papers from the AAGADE school and conference held in Będlewo, Poland in September 2015. The contributions provide an overview of the current level of interaction between algebra, geometry and analysis and demonstrate the manifold aspects of the theory of ordinary and partial differential equations, while also pointing out the highly fruitful interrelations between those aspects. These interactions continue to yield new developments, not only in the theory of differential equations but also in several related areas of mathematics and physics such as differential geometry, representation theory, number theory and mathematical physics. The main goal of the volume is to introduce basic concepts, techniques, detailed and illustrative examples and theorems (in a manner suitable for non-specialists), and to present recent developments in the field, together with open problems for more advanced and experienced readers. It will be of interest to graduate students, early-career researchers and specialists in analysis, geometry, algebra and related areas, as well as anyone interested in learning new methods and techniques.

Towards the Mathematics of Quantum Field Theory

Author: Frédéric Paugam
Publisher: Springer Science & Business Media
ISBN: 9783319045641
Release Date: 2014-02-20
Genre: Science

This ambitious and original book sets out to introduce to mathematicians (even including graduate students ) the mathematical methods of theoretical and experimental quantum field theory, with an emphasis on coordinate-free presentations of the mathematical objects in use. This in turn promotes the interaction between mathematicians and physicists by supplying a common and flexible language for the good of both communities, though mathematicians are the primary target. This reference work provides a coherent and complete mathematical toolbox for classical and quantum field theory, based on categorical and homotopical methods, representing an original contribution to the literature. The first part of the book introduces the mathematical methods needed to work with the physicists' spaces of fields, including parameterized and functional differential geometry, functorial analysis, and the homotopical geometric theory of non-linear partial differential equations, with applications to general gauge theories. The second part presents a large family of examples of classical field theories, both from experimental and theoretical physics, while the third part provides an introduction to quantum field theory, presents various renormalization methods, and discusses the quantization of factorization algebras.

Szeg Kernel Asymptotics for High Power of CR Line Bundles and Kodaira Embedding Theorems on CR Manifolds

Author: Chin-Yu Hsiao
Publisher: American Mathematical Soc.
ISBN: 9781470441012
Release Date: 2018-08-09
Genre:

Let X be an abstract not necessarily compact orientable CR manifold of dimension 2n−1, n⩾2, and let Lk be the k-th tensor power of a CR complex line bundle L over X. Given q∈{0,1,…,n−1}, let □(q)b,k be the Gaffney extension of Kohn Laplacian for (0,q) forms with values in Lk. For λ≥0, let Π(q)k,≤λ:=E((−∞,λ]), where E denotes the spectral measure of □(q)b,k. In this work, the author proves that Π(q)k,≤k−N0F∗k, FkΠ(q)k,≤k−N0F∗k, N0≥1, admit asymptotic expansions with respect to k on the non-degenerate part of the characteristic manifold of □(q)b,k, where Fk is some kind of microlocal cut-off function. Moreover, we show that FkΠ(q)k,≤0F∗k admits a full asymptotic expansion with respect to k if □(q)b,k has small spectral gap property with respect to Fk and Π(q)k,≤0 is k-negligible away the diagonal with respect to Fk. By using these asymptotics, the authors establish almost Kodaira embedding theorems on CR manifolds and Kodaira embedding theorems on CR manifolds with transversal CR S1 action.

Eigenfunctions of the Laplacian on a Riemannian Manifold

Author: Steve Zelditch
Publisher: American Mathematical Soc.
ISBN: 9781470410377
Release Date: 2017-12-12
Genre: Eigenfunctions

Eigenfunctions of the Laplacian of a Riemannian manifold can be described in terms of vibrating membranes as well as quantum energy eigenstates. This book is an introduction to both the local and global analysis of eigenfunctions. The local analysis of eigenfunctions pertains to the behavior of the eigenfunctions on wavelength scale balls. After re-scaling to a unit ball, the eigenfunctions resemble almost-harmonic functions. Global analysis refers to the use of wave equation methods to relate properties of eigenfunctions to properties of the geodesic flow. The emphasis is on the global methods and the use of Fourier integral operator methods to analyze norms and nodal sets of eigenfunctions. A somewhat unusual topic is the analytic continuation of eigenfunctions to Grauert tubes in the real analytic case, and the study of nodal sets in the complex domain. The book, which grew out of lectures given by the author at a CBMS conference in 2011, provides complete proofs of some model results, but more often it gives informal and intuitive explanations of proofs of fairly recent results. It conveys inter-related themes and results and offers an up-to-date comprehensive treatment of this important active area of research.

Topologie

Author: Klaus Jänich
Publisher: Springer-Verlag
ISBN: 9783662105757
Release Date: 2013-03-14
Genre: Mathematics

Aus den Rezensionen: "Was das Buch vor allem auszeichnet, ist die unkonventionelle Darstellungsweise. Hier wird Mathematik nicht im trockenen Definition-Satz-Beweis-Stil geboten, sondern sie wird dem Leser pointiert und mit viel Humor schmackhaft gemacht. In ungewöhnlich fesselnder Sprache geschrieben, ist die Lektüre dieses Buches auch ein belletristisches Vergnügen. Fast 200 sehr instruktive und schöne Zeichnungen unterstützen das Verständnis, motivieren die behandelten Aussagen, modellieren die tragenden Beweisideen heraus. Ungewöhnlich ist auch das Register, das unter jedem Stichwort eine Kurzdefinition enthält und somit umständliches Nachschlagen erspart". Wiss. Zeitschrift der TU Dresden Jetzt in der siebenten, durchgesehenen Auflage!

Index Theory for Locally Compact Noncommutative Geometries

Author: A. L. Carey
Publisher: American Mathematical Soc.
ISBN: 9780821898383
Release Date: 2014-08-12
Genre: Mathematics

Spectral triples for nonunital algebras model locally compact spaces in noncommutative geometry. In the present text, the authors prove the local index formula for spectral triples over nonunital algebras, without the assumption of local units in our algebra. This formula has been successfully used to calculate index pairings in numerous noncommutative examples. The absence of any other effective method of investigating index problems in geometries that are genuinely noncommutative, particularly in the nonunital situation, was a primary motivation for this study and the authors illustrate this point with two examples in the text. In order to understand what is new in their approach in the commutative setting the authors prove an analogue of the Gromov-Lawson relative index formula (for Dirac type operators) for even dimensional manifolds with bounded geometry, without invoking compact supports. For odd dimensional manifolds their index formula appears to be completely new.

Featured Reviews in Mathematical Reviews 1997 1999

Author: Donald G. Babbitt
Publisher: American Mathematical Soc.
ISBN: 0821896709
Release Date: 2000-05-05
Genre: Mathematics

This second volume of Featured Reviews makes available special detailed reviews of some of the most important mathematical articles and books published from 1997 through 1999. Also included are excellent reviews of several classic books and articles published prior to 1970. Among those reviews, for example, are the following: Homological Algebra by Henri Cartan and Samuel Eilenberg, reviewed by G. Hochschild; Faisceaux algebriques coherents by Jean-Pierre Serre, reviewed by C. Chevalley; and On the Theory of General Partial Differential Operators by Lars Hormander, reviewed by J. L. Lions. In particular, those seeking information on current developments outside their own area of expertise will find the volume very useful. By identifying some of the best publications, papers, and books that have had or are expected to have a significant impact in applied and pure mathematics, this volume will serve as a comprehensive guide to important new research across all fields covered by MR.

Guide to Reprints

Author: Albert James Diaz
Publisher: K G Saur Verlag Gmbh & Co
ISBN: 3598239076
Release Date: 2001
Genre: Out-of-print books

The Subject Guide divides works into over 200 subject groups, facilitating targeted searches by the subject fields. Both parts of the Guide to Reprints contain an Index of Persons as Subject providing fast and reliable access to reprints focussing on specific individuals and their work. Each part also comes with an index of publishers and distributors worldwide along with all relevant information.

Wavelets

Author: Yves Meyer
Publisher: Cambridge University Press
ISBN: 0521794730
Release Date: 2000-07-31
Genre: Mathematics

A classic exposition of the theory of wavelets from two of the subject's leading experts.

Differentialgleichungen und ihre Anwendungen

Author: Martin Braun
Publisher: Springer-Verlag
ISBN: 9783642975158
Release Date: 2013-03-14
Genre: Mathematics

Dieses richtungsweisende Lehrbuch für die Anwendung der Mathematik in anderen Wissenschaftszweigen gibt eine Einführung in die Theorie der gewöhnlichen Differentialgleichungen. Fortran und APL-Programme geben den Studenten die Möglichkeit, verschiedene numerische Näherungsverfahren an ihrem PC selbst durchzurechnen. Aus den Besprechungen: "Die Darstellung ist überall mathematisch streng und zudem ungemein anregend. Abgesehen von manchen historischen Bemerkungen ... tragen dazu die vielen mit ausführlichem Hintergrund sehr eingehend entwickelten praktischen Anwendungen bei. ... Besondere Aufmerksamkeit wird der physikalisch und technisch so wichtigen Frage nach Stabilität von Lösungen eines Systems von Differentialgleichungen gewidmet. Das Buch ist wegen seiner geringen Voraussetzungen und vorzüglichen Didaktik schon für alle Studenten des 3. Semesters geeignet; seine eminent praktische Haltung empfiehlt es aber auch für alle Physiker, die mit Differentialgleichungen und ihren Anwendungen umzugehen haben." #Physikalische Blätter#