A Homology Theory For Smale Spaces
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A Homology Theory for Smale Spaces
Author | : Ian F. Putnam |
Publsiher | : American Mathematical Soc. |
Total Pages | : 122 |
Release | : 2014-09-29 |
Genre | : Mathematics |
ISBN | : 9781470409098 |
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The author develops a homology theory for Smale spaces, which include the basics sets for an Axiom A diffeomorphism. It is based on two ingredients. The first is an improved version of Bowen's result that every such system is the image of a shift of finite type under a finite-to-one factor map. The second is Krieger's dimension group invariant for shifts of finite type. He proves a Lefschetz formula which relates the number of periodic points of the system for a given period to trace data from the action of the dynamics on the homology groups. The existence of such a theory was proposed by Bowen in the 1970s.
2016 MATRIX Annals
Author | : Jan de Gier,Cheryl E. Praeger,Terence Tao |
Publsiher | : Springer |
Total Pages | : 656 |
Release | : 2018-04-10 |
Genre | : Mathematics |
ISBN | : 9783319722993 |
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MATRIX is Australia’s international, residential mathematical research institute. It facilitates new collaborations and mathematical advances through intensive residential research programs, each lasting 1-4 weeks. This book is a scientific record of the five programs held at MATRIX in its first year, 2016: - Higher Structures in Geometry and Physics - Winter of Disconnectedness - Approximation and Optimisation - Refining C*-Algebraic Invariants for Dynamics using KK-theory - Interactions between Topological Recursion, Modularity, Quantum Invariants and Low- dimensional Topology The MATRIX Scientific Committee selected these programs based on their scientific excellence and the participation rate of high-profile international participants. Each program included ample unstructured time to encourage collaborative research; some of the longer programs also included an embedded conference or lecture series. The articles are grouped into peer-reviewed contributions and other contributions. The peer-reviewed articles present original results or reviews on selected topics related to the MATRIX program; the remaining contributions are predominantly lecture notes based on talks or activities at MATRIX.
Operator Algebras and Applications
Author | : Toke M. Carlsen,Nadia S. Larsen,Sergey Neshveyev,Christian Skau |
Publsiher | : Springer |
Total Pages | : 348 |
Release | : 2016-07-30 |
Genre | : Mathematics |
ISBN | : 9783319392868 |
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Like the first Abel Symposium, held in 2004, the Abel Symposium 2015 focused on operator algebras. It is interesting to see the remarkable advances that have been made in operator algebras over these years, which strikingly illustrate the vitality of the field. A total of 26 talks were given at the symposium on a variety of themes, all highlighting the richness of the subject. The field of operator algebras was created in the 1930s and was motivated by problems of quantum mechanics. It has subsequently developed well beyond its initial intended realm of applications and expanded into such diverse areas of mathematics as representation theory, dynamical systems, differential geometry, number theory and quantum algebra. One branch, known as “noncommutative geometry”, has become a powerful tool for studying phenomena that are beyond the reach of classical analysis. This volume includes research papers that present new results, surveys that discuss the development of a specific line of research, and articles that offer a combination of survey and research. These contributions provide a multifaceted portrait of beautiful mathematics that both newcomers to the field of operator algebras and seasoned researchers alike will appreciate.
Homology Theory
Author | : James W Vick |
Publsiher | : Unknown |
Total Pages | : 264 |
Release | : 1994-01-07 |
Genre | : Electronic Book |
ISBN | : 1461208823 |
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Homology Theory
Author | : Anonim |
Publsiher | : Academic Press |
Total Pages | : 236 |
Release | : 1973-06-06 |
Genre | : Mathematics |
ISBN | : 0080873685 |
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Homology Theory
Higher Order Time Asymptotics of Fast Diffusion in Euclidean Space A Dynamical Systems Approach
Author | : Jochen Denzler,Herbert Koch, Robert J. McCann |
Publsiher | : American Mathematical Soc. |
Total Pages | : 81 |
Release | : 2015-02-06 |
Genre | : Mathematics |
ISBN | : 9781470414085 |
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This paper quantifies the speed of convergence and higher-order asymptotics of fast diffusion dynamics on Rn to the Barenblatt (self similar) solution. Degeneracies in the parabolicity of this equation are cured by re-expressing the dynamics on a manifold with a cylindrical end, called the cigar. The nonlinear evolution becomes differentiable in Hölder spaces on the cigar. The linearization of the dynamics is given by the Laplace-Beltrami operator plus a transport term (which can be suppressed by introducing appropriate weights into the function space norm), plus a finite-depth potential well with a universal profile. In the limiting case of the (linear) heat equation, the depth diverges, the number of eigenstates increases without bound, and the continuous spectrum recedes to infinity. The authors provide a detailed study of the linear and nonlinear problems in Hölder spaces on the cigar, including a sharp boundedness estimate for the semigroup, and use this as a tool to obtain sharp convergence results toward the Barenblatt solution, and higher order asymptotics. In finer convergence results (after modding out symmetries of the problem), a subtle interplay between convergence rates and tail behavior is revealed. The difficulties involved in choosing the right functional spaces in which to carry out the analysis can be interpreted as genuine features of the equation rather than mere annoying technicalities.
On the Differential Structure of Metric Measure Spaces and Applications
Author | : Nicola Gigli |
Publsiher | : American Mathematical Soc. |
Total Pages | : 91 |
Release | : 2015-06-26 |
Genre | : Differential calculus |
ISBN | : 9781470414207 |
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The main goals of this paper are: (i) To develop an abstract differential calculus on metric measure spaces by investigating the duality relations between differentials and gradients of Sobolev functions. This will be achieved without calling into play any sort of analysis in charts, our assumptions being: the metric space is complete and separable and the measure is Radon and non-negative. (ii) To employ these notions of calculus to provide, via integration by parts, a general definition of distributional Laplacian, thus giving a meaning to an expression like , where is a function and is a measure. (iii) To show that on spaces with Ricci curvature bounded from below and dimension bounded from above, the Laplacian of the distance function is always a measure and that this measure has the standard sharp comparison properties. This result requires an additional assumption on the space, which reduces to strict convexity of the norm in the case of smooth Finsler structures and is always satisfied on spaces with linear Laplacian, a situation which is analyzed in detail.
Level One Algebraic Cusp Forms of Classical Groups of Small Rank
Author | : Gaëtan Chenevier, David A. Renard |
Publsiher | : American Mathematical Soc. |
Total Pages | : 122 |
Release | : 2015-08-21 |
Genre | : Cusp forms (Mathematics) |
ISBN | : 9781470410940 |
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The authors determine the number of level 1, polarized, algebraic regular, cuspidal automorphic representations of GLn over Q of any given infinitesimal character, for essentially all n≤8. For this, they compute the dimensions of spaces of level 1 automorphic forms for certain semisimple Z-forms of the compact groups SO7, SO8, SO9 (and G2) and determine Arthur's endoscopic partition of these spaces in all cases. They also give applications to the 121 even lattices of rank 25 and determinant 2 found by Borcherds, to level one self-dual automorphic representations of GLn with trivial infinitesimal character, and to vector valued Siegel modular forms of genus 3. A part of the authors' results are conditional to certain expected results in the theory of twisted endoscopy.