Results 11 to 20 of about 17,624 (148)

Spherical isotropy representations [PDF]

open access: yesPublications mathématiques de l'IHÉS, 1985
An old question of P. A. Smith considers a finite group G acting smoothly on a closed homotopy sphere \(\Sigma\) with \(\Sigma^ G\) consisting of precisely two points and asks whether the representations of G on the tangent spaces at the two fixed points are the same. This would be true, obviously, for a linear action on a sphere.
Petrie, Ted, Randall, John
openaire   +2 more sources

A triangular system for local character expansions of Iwahori-spherical representations of general linear groups

open access: yesComptes Rendus. Mathématique, 2023
For Iwahori-spherical representations of non-Archimedean general linear groups, Chan–Savin recently expressed the Whittaker functor as a restriction to an isotypic component of a finite Iwahori–Hecke algebra module.
Gurevich, Maxim
doaj   +1 more source

Spherical orbits and representations of Uε(g) [PDF]

open access: yesTransformation Groups, 2005
Let Ue(g) be the simply connected quantized enveloping algebra at roots of one associated to a finite dimensional complex simple Lie algebra g. The De Concini-Kac-Procesi conjecture on the dimension of the irreducible representations of Ue(g) is proved for the representations corresponding to the spherical conjugacy classes of the simply connected ...
CANTARINI, NICOLETTA   +2 more
openaire   +2 more sources

The quantum states for Hydrogen atom: spherical harmonics and the orbitals geometrical representation [PDF]

open access: yesINCAS Bulletin
Our work utilizes the quantum model of the hydrogen atom which is based on the Schrödinger equation with Coulomb potential. Specifically, we concentrate on the angular components of the wave eigenfunctions derived from this model. We consider the quantum
D. CONSTANTIN   +5 more
doaj   +1 more source

Tensor network approach to electromagnetic duality in (3+1)d topological gauge models

open access: yesJournal of High Energy Physics, 2022
Given the Hamiltonian realisation of a topological (3+1)d gauge theory with finite group G, we consider a family of tensor network representations of its ground state subspace.
Clement Delcamp
doaj   +1 more source

Chow groups and L-derivatives of automorphic motives for unitary groups, II.

open access: yesForum of Mathematics, Pi, 2022
In this article, we improve our main results from [LL21] in two directions: First, we allow ramified places in the CM extension $E/F$ at which we consider representations that are spherical with respect to a certain special maximal compact subgroup, by ...
Chao Li, Yifeng Liu
doaj   +1 more source

Spherical unitary highest weight representations [PDF]

open access: yesTransactions of the American Mathematical Society, 2001
Let \(G\) be a Lie group and \(H\) a closed subgroup. An irreducible unitary representation \((\pi ,{\mathcal H})\) of \(G\) is said to be \(H\)-spherical if \(({\mathcal H}^{-\infty })^H\not=\{O\}\), where \(({\mathcal H}^{-\infty })^H\) is the space of \(H\)-invariant distribution vectors, and then \(({\mathcal H}^{-\infty })^H\) is one dimensional ...
Krötz, Bernhard, Neeb, Karl-Hermann
openaire   +2 more sources

Formal degrees of genuine Iwahori-spherical representations

open access: yesThe Quarterly Journal of Mathematics, 2023
Abstract For irreducible genuine Iwahori-spherical discrete series representations of central covers, we verify the Hiraga–Ichino–Ikeda formula for their formal degrees.
Ping Dong, Fan Gao, Runze Wang
openaire   +3 more sources

Spherical subcategories in representation theory [PDF]

open access: yesMathematische Zeitschrift, 2018
We introduce a new invariant for triangulated categories: the poset of spherical subcategories ordered by inclusion. This yields several numerical invariants, like the cardinality and the height of the poset. We explicitly describe spherical subcategories and their poset structure for derived categories of certain finite-dimensional algebras.
Hochenegger A., Kalck M., Ploog D.
openaire   +3 more sources

Rigidity through a Projective Lens

open access: yesApplied Sciences, 2021
In this paper, we offer an overview of a number of results on the static rigidity and infinitesimal rigidity of discrete structures which are embedded in projective geometric reasoning, representations, and transformations.
Anthony Nixon   +2 more
doaj   +1 more source

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