Sub-Laplacians with Drift on Lie Groups of Polynomial Volume Growth

Sub-Laplacians with Drift on Lie Groups of Polynomial Volume Growth PDF Author: Georgios K. Alexopoulos
Publisher: American Mathematical Soc.
ISBN: 0821827642
Category : Mathematics
Languages : en
Pages : 119

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Book Description
This work is intended for graduate students and research mathematicians interested in topological groups, Lie groups, and harmonic analysis.

Sub-Laplacians with Drift on Lie Groups of Polynomial Volume Growth

Sub-Laplacians with Drift on Lie Groups of Polynomial Volume Growth PDF Author: Georgios K. Alexopoulos
Publisher: American Mathematical Soc.
ISBN: 0821827642
Category : Mathematics
Languages : en
Pages : 119

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Book Description
This work is intended for graduate students and research mathematicians interested in topological groups, Lie groups, and harmonic analysis.

Stratified Lie Groups and Potential Theory for Their Sub-Laplacians

Stratified Lie Groups and Potential Theory for Their Sub-Laplacians PDF Author: Andrea Bonfiglioli
Publisher: Springer Science & Business Media
ISBN: 3540718974
Category : Mathematics
Languages : en
Pages : 812

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Book Description
This book provides an extensive treatment of Potential Theory for sub-Laplacians on stratified Lie groups. It also provides a largely self-contained presentation of stratified Lie groups, and of their Lie algebra of left-invariant vector fields. The presentation is accessible to graduate students and requires no specialized knowledge in algebra or differential geometry.

Analysis on Lie Groups with Polynomial Growth

Analysis on Lie Groups with Polynomial Growth PDF Author: Nick Dungey
Publisher: Springer Science & Business Media
ISBN: 1461220629
Category : Mathematics
Languages : en
Pages : 315

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Book Description
Analysis on Lie Groups with Polynomial Growth is the first book to present a method for examining the surprising connection between invariant differential operators and almost periodic operators on a suitable nilpotent Lie group. It deals with the theory of second-order, right invariant, elliptic operators on a large class of manifolds: Lie groups with polynomial growth. In systematically developing the analytic and algebraic background on Lie groups with polynomial growth, it is possible to describe the large time behavior for the semigroup generated by a complex second-order operator with the aid of homogenization theory and to present an asymptotic expansion. Further, the text goes beyond the classical homogenization theory by converting an analytical problem into an algebraic one. This work is aimed at graduate students as well as researchers in the above areas. Prerequisites include knowledge of basic results from semigroup theory and Lie group theory.

Almost Commuting Elements in Compact Lie Groups

Almost Commuting Elements in Compact Lie Groups PDF Author: Armand Borel
Publisher: American Mathematical Soc.
ISBN: 0821827928
Category : Mathematics
Languages : en
Pages : 153

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Book Description
This text describes the components of the moduli space of conjugacy classes of commuting pairs and triples of elements in a compact Lie group. This description is in the extended Dynkin diagram of the simply connected cover, together with the co-root integers and the action of the fundamental group. In the case of three commuting elements, we compute Chern-Simons invariants associated to the corresponding flat bundles over the three-torus, and verify a conjecture of Witten which reveals a surprising symmetry involving the Chern-Simons invariants and the dimensions of the components of the moduli space.

Discrete Geometric Analysis

Discrete Geometric Analysis PDF Author: Motoko Kotani
Publisher: American Mathematical Soc.
ISBN: 0821833510
Category : Mathematics
Languages : en
Pages : 274

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Book Description
Collects papers from the proceedings of the first symposium of the Japan Association for Mathematical Sciences. This book covers topics that center around problems of geometric analysis in relation to heat kernels, random walks, and Poisson boundaries on discrete groups, graphs, and other combinatorial objects.

$q$-Difference Operators, Orthogonal Polynomials, and Symmetric Expansions

$q$-Difference Operators, Orthogonal Polynomials, and Symmetric Expansions PDF Author: Douglas Bowman
Publisher: American Mathematical Soc.
ISBN: 082182774X
Category : Mathematics
Languages : en
Pages : 73

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Book Description
The author explores ramifications and extensions of a $q$-difference operator method first used by L.J. Rogers for deriving relationships between special functions involving certain fundamental $q$-symmetric polynomials. In special cases these symmetric polynomials reduce to well-known classes of orthogonal polynomials. A number of basic properties of these polynomials follow from this approach. This leads naturally to the evaluation of the Askey-Wilson integral and generalizations. Expansions of certain generalized basic hypergeometric functions in terms of the symmetric polynomials are also found. This provides a quick route to understanding the group structure generated by iterating the two-term transformations of these functions. Some infrastructure is also laid for more general investigations in the future

From Representation Theory to Homotopy Groups

From Representation Theory to Homotopy Groups PDF Author: Donald M. Davis
Publisher: American Mathematical Soc.
ISBN: 0821829874
Category : Mathematics
Languages : en
Pages : 65

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Book Description
A formula for the odd-primary v1-periodic homotopy groups of a finite H-space in terms of its K-theory and Adams operations has been obtained by Bousfield. This work applys this theorem to give explicit determinations of the v1-periodic homotopy groups of (E8,5) and (E8,3), thus completing the determination of all odd-primary v1-periodic homotopy groups of all compact simple Lie groups, a project suggested by Mimura in 1989.

The Connective K-Theory of Finite Groups

The Connective K-Theory of Finite Groups PDF Author: Robert Ray Bruner
Publisher: American Mathematical Soc.
ISBN: 0821833669
Category : Mathematics
Languages : en
Pages : 144

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Book Description
Includes a paper that deals the connective K homology and cohomology of finite groups $G$. This title uses the methods of algebraic geometry to study the ring $ku DEGREES*(BG)$ where $ku$ denotes connective complex K-theory. It describes the variety in terms of the category of abelian $p$-subgroups of $G$ for primes $p$ dividing the group

Inverse Problems and Spectral Theory

Inverse Problems and Spectral Theory PDF Author: Hiroshi Isozaki
Publisher: American Mathematical Soc.
ISBN: 0821834215
Category : Mathematics
Languages : en
Pages : 258

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Book Description
This volume grew out of a workshop on spectral theory of differential operators and inverse problems held at the Research Institute for Mathematical Sciences (Kyoto University). The gathering of nearly 100 participants at the conference suggests the increasing interest in this field of research. The focus of the book is on spectral theory for differential operators and related inverse problems. It includes selected topics from the following areas: electromagnetism, elasticity, the Schrodinger equation, differential geometry, and numerical analysis. The material is suitable for graduate students and researchers interested in inverse problems and their applications.

Mutual Invadability Implies Coexistence in Spatial Models

Mutual Invadability Implies Coexistence in Spatial Models PDF Author: Richard Durrett
Publisher: American Mathematical Soc.
ISBN: 0821827685
Category : Mathematics
Languages : en
Pages : 133

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Book Description
In (1994) Durrett and Levin proposed that the equilibrium behavior of stochastic spatial models could be determined from properties of the solution of the mean field ordinary differential equation (ODE) that is obtained by pretending that all sites are always independent. Here we prove a general result in support of that picture. We give a condition on an ordinary differential equation which implies that densities stay bounded away from 0 in the associated reaction-diffusion equation, and that coexistence occurs in the stochastic spatial model with fast stirring. Then using biologists' notion of invadability as a guide, we show how this condition can be checked in a wide variety of examples that involve two or three species: epidemics, diploid genetics models, predator-prey systems, and various competition models.