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Related papers: On the Siegel-Weil Theorem for Loop Groups (I)

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We give an elementary proof of the group law for elliptic curves using explicit formulas.

Algebraic Geometry · Mathematics 2017-10-03 Stefan Friedl

We construct via generators and relations, generalized Weil representations for analogues of classical $SL(2,k), k$ a field, over involutive base rings $(A, \ast).$ This family of groups covers different kinds of groups, classical and non…

Representation Theory · Mathematics 2010-09-07 Luis Gutiérrez , José Pantoja , Jorge Soto-Andrade

Unfortunately, some proofs in the first version of this paper were incorrect. In this revised version, some minor gaps are fixed, one serious mistake found. The main theorem is now claimed only under a restrictive technical assumption. This…

Algebraic Geometry · Mathematics 2007-05-23 D. Kaledin

In this paper we prove isomorphisms between 5 Lie groups (of arbitrary dimension and fixed signatures) in Clifford algebra and classical matrix Lie groups - symplectic, orthogonal and linear groups. Also we obtain isomorphisms of…

Mathematical Physics · Physics 2024-12-24 D. S. Shirokov

I adapt a recently introduced method for integrating over the unitary group (S. Aubert and C.S. Lam, J.Math.Phys. 44, 6112-6131 (2003)) to the orthogonal group. I derive explicit formulas for a number of one, two and three-vector integrals,…

Mathematical Physics · Physics 2007-05-23 Daniel Braun

As we said in our previous work [4], the main idea of our research is to introduce a class of Lie groupoids by means of co-adjoint representation of a Lie groupoid on its isotropy Lie algebroid, which we called coadjoint Lie groupoids. In…

Dynamical Systems · Mathematics 2024-11-26 Ghorbanali Haghighatdoost , Rezvaneh Ayoubi

Let $q$ be an odd prime power, and $G=\text{Sp}(2n,q)$ the finite symplectic group. We give an expression for the total Stiefel-Whitney Classes (SWCs) for orthogonal representations $\pi$ of $G$, in terms of character values of $\pi$ at…

Representation Theory · Mathematics 2025-12-16 Neha Malik , Steven Spallone

In this article, motivated by the study of symplectic structures on manifolds with boundary and the systematic study of $b$-symplectic manifolds started in [12], we prove a slice theorem for Lie group actions on $b$-symplectic manifolds.

Symplectic Geometry · Mathematics 2023-06-16 Roisin Braddell , Anna Kiesenhofer , Eva Miranda

I calculate characters of certain representations of loop groups based on non simply connected Lie groups. This gives a generalization of the Kac-Weyl character formula.

Representation Theory · Mathematics 2007-05-23 Robert Wendt

We compute the Chow-Witt rings of the classifying spaces for the symplectic and special linear groups. In the structural description we give, contributions from real and complex realization are clearly visible. In particular, the…

Algebraic Geometry · Mathematics 2019-09-25 Jens Hornbostel , Matthias Wendt

We develop cycle index generating functions for orthogonal groups in even characteristic, and give some enumerative applications. A key step is the determination of the values of the complex linear-Weil characters of the finite symplectic…

Representation Theory · Mathematics 2010-04-16 Jason Fulman , Jan Saxl , Pham Huu Tiep

In this paper, we focus on Oliver's $p$-group conjecture. We use elementary method to prove that Oliver's $p$-group conjecture holds for Sylow $p$-subgroups of unitary groups.

Group Theory · Mathematics 2024-12-04 Xingzhong Xu

We introduce analogues of Soergel bimodules for complex reflection groups of rank one. We give an explicit parametrization of the indecomposable objects of the resulting category and give a presentation of its split Grothendieck ring by…

Representation Theory · Mathematics 2018-12-07 Thomas Gobet , Anne-Laure Thiel

This note provides a formula for the character of the Lie algebra of the fundamental group of a surface, viewed as a module over the symplectic group.

Geometric Topology · Mathematics 2013-08-08 Simion Filip

The main purpose of this article is to supplement the authors' results on degenerate principal series representations of real symplectic groups with the analogous results for metaplectic groups. The basic theme, as in the previous case, is…

Representation Theory · Mathematics 2014-06-06 Soo Teck Lee , Chen-Bo Zhu

The purpose of this paper is presenting a theoretical basis for the study of $\omega$-Hamiltonian vector fields in a more general approach than the classical one. We introduce the concepts of $\omega$-symplectic group and…

The expansion method of Lie algebras by a semigroup or S-expansion is generalized to act directly on the group manifold, and not only at the level of its Lie algebra. The consistency of this generalization with the dual formulation of the…

High Energy Physics - Theory · Physics 2010-07-13 Hernán Astudillo , Ricardo Caroca , Alfredo Pérez , Patricio Salgado

Based on the Euler-Lagrange cohomology groups $H_{EL}^{(2k-1)}({\cal M}^{2n}) (1 \leqslant k\leqslant n)$ on symplectic manifold $({\cal M}^{2n}, \omega)$, their properties and a kind of classification of vector fields on the manifold, we…

Mathematical Physics · Physics 2007-05-23 Han-Ying Guo , Jianzhong Pan , Bin Zhou

Weil prolongations of a Lie group are naturally Lie groups. It is not known in the theory of infinite-dimensional Lie groups how to construct a Lie group with a given Lie algebra as its Lie algebra or whether there exists such a Lie group…

Group Theory · Mathematics 2014-01-03 Hirokazu Nishimura

In this note, we give a formula for the Whittaker-Shintani functions for the p-adic symplectic groups, which is a generalization of the Zonal spherical functions and Whittaker functions. We then use the formula to give an alternative proof…

Representation Theory · Mathematics 2012-11-16 Xin Shen