On Dynamical Poisson Groupoids I

On Dynamical Poisson Groupoids I PDF Author: Luen-Chau Li
Publisher: American Mathematical Soc.
ISBN: 0821836730
Category : Mathematics
Languages : en
Pages : 86

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Book Description
We address the question of duality for the dynamical Poisson groupoids of Etingof and Varchenko over a contractible base. We also give an explicit description for the coboundary case associated with the solutions of (CDYBE) on simple Lie algebras as classified by the same authors.

On Dynamical Poisson Groupoids I

On Dynamical Poisson Groupoids I PDF Author: Luen-Chau Li
Publisher: American Mathematical Soc.
ISBN: 0821836730
Category : Mathematics
Languages : en
Pages : 86

Get Book Here

Book Description
We address the question of duality for the dynamical Poisson groupoids of Etingof and Varchenko over a contractible base. We also give an explicit description for the coboundary case associated with the solutions of (CDYBE) on simple Lie algebras as classified by the same authors.

On Dynamical Poisson Groupoids

On Dynamical Poisson Groupoids PDF Author: Luen-Chau Li
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description


On Dynamical Poisson Groupoids I

On Dynamical Poisson Groupoids I PDF Author: Serge Parmentier
Publisher: American Mathematical Soc.
ISBN: 9780821865460
Category : Mathematics
Languages : en
Pages : 92

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Book Description
We address the question of duality for the dynamical Poisson groupoids of Etingof and Varchenko over a contractible base. We also give an explicit description for the coboundary case associated with the solutions of (CDYBE) on simple Lie algebras as classified by the same authors. Our approach is based on the study of a class of Poisson structures on trivial Lie groupoids within the category of biequivariant Poisson manifolds. In the former case, it is shown that the dual Poisson groupoid of such a dynamical Poisson groupoid is isomorphic to a Poisson groupoid (with trivial Lie groupoid structure) within this category. In the latter case, we find that the dual Poisson groupoid is also of dynamical type modulo Poisson groupoid isomorphisms. For the coboundary dynamical Poisson groupoids associated with constant $r$-matrices, we give an explicit construction of the corresponding symplectic double groupoids. In this case, the symplectic leaves of the dynamical Poisson groupoid are shown to be the orbits of a Poisson Lie group action.

Lie Groups and Symmetric Spaces

Lie Groups and Symmetric Spaces PDF Author: Semen Grigorʹevich Gindikin
Publisher: American Mathematical Soc.
ISBN: 9780821834725
Category : Geometry, Differential
Languages : en
Pages : 372

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Book Description
The book contains survey and research articles devoted mainly to geometry and harmonic analysis of symmetric spaces and to corresponding aspects of group representation theory. The volume is dedicated to the memory of Russian mathematician, F. I. Karpelevich (1927-2000). Of particular interest are the survey articles by Sawyer on the Abel transform on noncompact Riemannian symmetric spaces, and by Anker and Ostellari on estimates for heat kernels on such spaces, as well as thearticle by Bernstein and Gindikin on integral geometry for families of curves. There are also many research papers on topics of current interest. The book is suitable for graduate students and research mathematicians interested in harmonic analysis and representation theory.

On Maps from Loop Suspensions to Loop Spaces and the Shuffle Relations on the Cohen Groups

On Maps from Loop Suspensions to Loop Spaces and the Shuffle Relations on the Cohen Groups PDF Author: Jie Wu
Publisher: American Mathematical Soc.
ISBN: 082183875X
Category : Mathematics
Languages : en
Pages : 78

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Book Description
The maps from loop suspensions to loop spaces are investigated using group representations in this article. The shuffle relations on the Cohen groups are given. By using these relations, a universal ring for functorial self maps of double loop spaces of double suspensions is given. Moreover the obstructions to the classical exponent problem in homotopy theory are displayed in the extension groups of the dual of the important symmetric group modules Lie$(n)$, as well as in the top cohomology of the Artin braid groups with coefficients in the top homology of the Artin pure braid groups.

Equivalences of Classifying Spaces Completed at the Prime Two

Equivalences of Classifying Spaces Completed at the Prime Two PDF Author: Robert Oliver
Publisher: American Mathematical Soc.
ISBN: 0821838288
Category : Mathematics
Languages : en
Pages : 116

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Book Description
We prove here the Martino-Priddy conjecture at the prime $2$: the $2$-completions of the classifying spaces of two finite groups $G$ and $G'$ are homotopy equivalent if and only if there is an isomorphism between their Sylow $2$-subgroups which preserves fusion. This is a consequence of a technical algebraic result, which says that for a finite group $G$, the second higher derived functor of the inverse limit vanishes for a certain functor $\mathcal{Z}_G$ on the $2$-subgroup orbit category of $G$. The proof of this result uses the classification theorem for finite simple groups.

Quasi-Ordinary Power Series and Their Zeta Functions

Quasi-Ordinary Power Series and Their Zeta Functions PDF Author: Enrique Artal-Bartolo
Publisher: American Mathematical Soc.
ISBN: 0821838768
Category : Mathematics
Languages : en
Pages : 98

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Book Description
Intends to prove the monodromy conjecture for the local Igusa zeta function of a quasi-ordinary polynomial of arbitrary dimension defined over a number field. In order to do it, this title computes the local Denef-Loeser motivic zeta function $Z_{\text{DL}}(h, T)$ of a quasi-ordinary power series $h$ of arbitrary dimension

A Random Tiling Model for Two Dimensional Electrostatics

A Random Tiling Model for Two Dimensional Electrostatics PDF Author: Mihai Ciucu
Publisher: American Mathematical Soc.
ISBN: 082183794X
Category : Mathematics
Languages : en
Pages : 162

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Book Description
Studies the correlation of holes in random lozenge (i.e., unit rhombus) tilings of the triangular lattice. This book analyzes the joint correlation of these triangular holes when their complement is tiled uniformly at random by lozenges.

Higher Complex Torsion and the Framing Principle

Higher Complex Torsion and the Framing Principle PDF Author: Kiyoshi Igusa
Publisher: American Mathematical Soc.
ISBN: 0821837737
Category : Mathematics
Languages : en
Pages : 114

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Book Description
Intends to prove that higher Franz-Reidemeister (FR) torsion satisfies the transfer property and a formula known as the 'Framing Principle' in full generality. This title uses these properties to compute the higher FR-torsion for various smooth bundles with oriented closed even dimensional manifold fibers.

Weil-Petersson Metric on the Universal Teichmuller Space

Weil-Petersson Metric on the Universal Teichmuller Space PDF Author: Leon Armenovich Takhtadzhi︠a︡n
Publisher: American Mathematical Soc.
ISBN: 0821839365
Category : Mathematics
Languages : en
Pages : 136

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Book Description
In this memoir, we prove that the universal Teichmuller space $T(1)$ carries a new structure of a complex Hilbert manifold and show that the connected component of the identity of $T(1)$ -- the Hilbert submanifold $T {0 (1)$ -- is a topological group. We define a Weil-Petersson metric on $T(1)$ by Hilbert space inner products on tangent spaces, compute its Riemann curvature tensor, and show that $T(1)$ is a Kahler-Einstein manifold with negative Ricci and sectional curvatures. We introduce and compute Mumford-Miller-Morita characteristic forms for the vertical tangent bundle of the universal Teichmuller curve fibration over the universal Teichmuller space. As an application, we derive Wolpert curvature formulas for the finite-dimensional Teichmuller spaces from the formulas for the universal Teichmuller space. We study in detail the Hilbert manifold structure on $T {0 (1)$ and characterize points on $T {0 (1)$ in terms of Bers and pre-Bers embeddings by proving that the Grunsky operators $B {1 $ and The results of this memoir were presented in our e-prints: Weil-Petersson metric on the universal Teichmuller space I. Curvature properties and Chern forms, arXiv:math.CV/0312172 (2003), and Weil-Petersson metric on the universal Teichmuller space II. Kahler potential and period mapping, arXiv:math.CV/0406408 (2004).