Conformal Graph Directed Markov Systems on Carnot Groups

Conformal Graph Directed Markov Systems on Carnot Groups PDF Author: Vasileios Chousionis
Publisher: American Mathematical Soc.
ISBN: 1470442159
Category : Mathematics
Languages : en
Pages : 153

Get Book Here

Book Description
The authors develop a comprehensive theory of conformal graph directed Markov systems in the non-Riemannian setting of Carnot groups equipped with a sub-Riemannian metric. In particular, they develop the thermodynamic formalism and show that, under natural hypotheses, the limit set of an Carnot conformal GDMS has Hausdorff dimension given by Bowen's parameter. They illustrate their results for a variety of examples of both linear and nonlinear iterated function systems and graph directed Markov systems in such sub-Riemannian spaces. These include the Heisenberg continued fractions introduced by Lukyanenko and Vandehey as well as Kleinian and Schottky groups associated to the non-real classical rank one hyperbolic spaces.

Conformal Graph Directed Markov Systems on Carnot Groups

Conformal Graph Directed Markov Systems on Carnot Groups PDF Author: Vasileios Chousionis
Publisher: American Mathematical Soc.
ISBN: 1470442159
Category : Mathematics
Languages : en
Pages : 153

Get Book Here

Book Description
The authors develop a comprehensive theory of conformal graph directed Markov systems in the non-Riemannian setting of Carnot groups equipped with a sub-Riemannian metric. In particular, they develop the thermodynamic formalism and show that, under natural hypotheses, the limit set of an Carnot conformal GDMS has Hausdorff dimension given by Bowen's parameter. They illustrate their results for a variety of examples of both linear and nonlinear iterated function systems and graph directed Markov systems in such sub-Riemannian spaces. These include the Heisenberg continued fractions introduced by Lukyanenko and Vandehey as well as Kleinian and Schottky groups associated to the non-real classical rank one hyperbolic spaces.

Graph Directed Markov Systems

Graph Directed Markov Systems PDF Author: R. Daniel Mauldin
Publisher: Cambridge University Press
ISBN: 9780521825382
Category : Mathematics
Languages : en
Pages : 302

Get Book Here

Book Description
The main focus of this book is the exploration of the geometric and dynamic properties of a far reaching generalization of a conformal iterated function system - a Graph Directed Markov System. These systems are very robust in that they apply to many settings that do not fit into the scheme of conformal iterated systems. The basic theory is laid out here and the authors have touched on many natural questions arising in its context. However, they also emphasise the many issues and current research topics which can be found in original papers. For example the detailed analysis of the structure of harmonic measures of limit sets, the examination of the doubling property of conformal measures, the extensive study of generalized polynomial like mapping or multifractal analysis of geometrically finite Kleinian groups. This book leads readers onto frontier research in the field, making it ideal for both established researchers and graduate students.

Differential Function Spectra, the Differential Becker-Gottlieb Transfer, and Applications to Differential Algebraic K-Theory

Differential Function Spectra, the Differential Becker-Gottlieb Transfer, and Applications to Differential Algebraic K-Theory PDF Author: Ulrich Bunke
Publisher: American Mathematical Soc.
ISBN: 1470446855
Category : Education
Languages : en
Pages : 177

Get Book Here

Book Description
We develop differential algebraic K-theory for rings of integers in number fields and we construct a cycle map from geometrized bundles of modules over such a ring to the differential algebraic K-theory. We also treat some of the foundational aspects of differential cohomology, including differential function spectra and the differential Becker-Gottlieb transfer. We then state a transfer index conjecture about the equality of the Becker-Gottlieb transfer and the analytic transfer defined by Lott. In support of this conjecture, we derive some non-trivial consequences which are provable by independent means.

Gromov-Witten Theory of Quotients of Fermat Calabi-Yau Varieties

Gromov-Witten Theory of Quotients of Fermat Calabi-Yau Varieties PDF Author: Hiroshi Iritani
Publisher: American Mathematical Soc.
ISBN: 1470443635
Category : Education
Languages : en
Pages : 92

Get Book Here

Book Description
Gromov-Witten theory started as an attempt to provide a rigorous mathematical foundation for the so-called A-model topological string theory of Calabi-Yau varieties. Even though it can be defined for all the Kähler/symplectic manifolds, the theory on Calabi-Yau varieties remains the most difficult one. In fact, a great deal of techniques were developed for non-Calabi-Yau varieties during the last twenty years. These techniques have only limited bearing on the Calabi-Yau cases. In a certain sense, Calabi-Yau cases are very special too. There are two outstanding problems for the Gromov-Witten theory of Calabi-Yau varieties and they are the focus of our investigation.

Resolvent, Heat Kernel, and Torsion under Degeneration to Fibered Cusps

Resolvent, Heat Kernel, and Torsion under Degeneration to Fibered Cusps PDF Author: Pierre Albin
Publisher: American Mathematical Soc.
ISBN: 1470444224
Category : Education
Languages : en
Pages : 126

Get Book Here

Book Description
Manifolds with fibered cusps are a class of complete non-compact Riemannian manifolds including many examples of locally symmetric spaces of rank one. We study the spectrum of the Hodge Laplacian with coefficients in a flat bundle on a closed manifold undergoing degeneration to a manifold with fibered cusps. We obtain precise asymptotics for the resolvent, the heat kernel, and the determinant of the Laplacian. Using these asymptotics we obtain a topological description of the analytic torsion on a manifold with fibered cusps in terms of the R-torsion of the underlying manifold with boundary.

Local Well-Posedness and Break-Down Criterion of the Incompressible Euler Equations with Free Boundary

Local Well-Posedness and Break-Down Criterion of the Incompressible Euler Equations with Free Boundary PDF Author: Chao Wang
Publisher: American Mathematical Soc.
ISBN: 1470446898
Category : Education
Languages : en
Pages : 119

Get Book Here

Book Description
In this paper, we prove the local well-posedness of the free boundary problem for the incompressible Euler equations in low regularity Sobolev spaces, in which the velocity is a Lipschitz function and the free surface belongs to C 3 2 +ε. Moreover, we also present a Beale-Kato-Majda type break-down criterion of smooth solution in terms of the mean curvature of the free surface, the gradient of the velocity and Taylor sign condition.

Paley-Wiener Theorems for a p-Adic Spherical Variety

Paley-Wiener Theorems for a p-Adic Spherical Variety PDF Author: Patrick Delorme
Publisher: American Mathematical Soc.
ISBN: 147044402X
Category : Education
Languages : en
Pages : 102

Get Book Here

Book Description
Let SpXq be the Schwartz space of compactly supported smooth functions on the p-adic points of a spherical variety X, and let C pXq be the space of Harish-Chandra Schwartz functions. Under assumptions on the spherical variety, which are satisfied when it is symmetric, we prove Paley–Wiener theorems for the two spaces, characterizing them in terms of their spectral transforms. As a corollary, we get relative analogs of the smooth and tempered Bernstein centers — rings of multipliers for SpXq and C pXq.WhenX “ a reductive group, our theorem for C pXq specializes to the well-known theorem of Harish-Chandra, and our theorem for SpXq corresponds to a first step — enough to recover the structure of the Bern-stein center — towards the well-known theorems of Bernstein [Ber] and Heiermann [Hei01].

Bounded Littlewood Identities

Bounded Littlewood Identities PDF Author: Eric M. Rains
Publisher: American Mathematical Soc.
ISBN: 1470446901
Category : Education
Languages : en
Pages : 115

Get Book Here

Book Description
We describe a method, based on the theory of Macdonald–Koornwinder polynomials, for proving bounded Littlewood identities. Our approach provides an alternative to Macdonald’s partial fraction technique and results in the first examples of bounded Littlewood identities for Macdonald polynomials. These identities, which take the form of decomposition formulas for Macdonald polynomials of type (R, S) in terms of ordinary Macdonald polynomials, are q, t-analogues of known branching formulas for characters of the symplectic, orthogonal and special orthogonal groups. In the classical limit, our method implies that MacMahon’s famous ex-conjecture for the generating function of symmetric plane partitions in a box follows from the identification of GL(n, R), O(n) as a Gelfand pair. As further applications, we obtain combinatorial formulas for characters of affine Lie algebras; Rogers–Ramanujan identities for affine Lie algebras, complementing recent results of Griffin et al.; and quadratic transformation formulas for Kaneko–Macdonald-type basic hypergeometric series.

The 2D Compressible Euler Equations in Bounded Impermeable Domains with Corners

The 2D Compressible Euler Equations in Bounded Impermeable Domains with Corners PDF Author: Paul Godin
Publisher: American Mathematical Soc.
ISBN: 1470444216
Category : Education
Languages : en
Pages : 72

Get Book Here

Book Description
We study 2D compressible Euler flows in bounded impermeable domains whose boundary is smooth except for corners. We assume that the angles of the corners are small enough. Then we obtain local (in time) existence of solutions which keep the L2 Sobolev regularity of their Cauchy data, provided the external forces are sufficiently regular and suitable compatibility conditions are satisfied. Such a result is well known when there is no corner. Our proof relies on the study of associated linear problems. We also show that our results are rather sharp: we construct counterexamples in which the smallness condition on the angles is not fulfilled and which display a loss of L2 Sobolev regularity with respect to the Cauchy data and the external forces.

Meromorphic Dynamics

Meromorphic Dynamics PDF Author: Janina Kotus
Publisher: Cambridge University Press
ISBN: 1009215914
Category : Mathematics
Languages : en
Pages : 509

Get Book Here

Book Description
A comprehensive and detailed presentation of finite and infinite ergodic theory, fractal measures, and thermodynamic formalism.