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We investigate the representations of the hyperalgebras associated to the map algebras $\mathfrak g\otimes \mathcal A$, where $\mathfrak g$ is any finite-dimensional complex simple Lie algebra and $\mathcal A$ is any associative commutative…

Representation Theory · Mathematics 2020-07-15 Angelo Bianchi , Samuel Chamberlin

We introduce some classical concepts in the representation theory of compact groups, in order to use them for a new generalization of the Peter-Weyl Theorem. We mostly deal with functions on locally compact groups possessing large…

Representation Theory · Mathematics 2026-03-10 Y. Bavuma , E. Stevenson , F. G. Russo

Weyl invariant gravity has been investigated as the fundamental theory of the vector inflation. Accordingly, we consider a Weyl invariant extension of Dirac-Born-Infeld type gravity. We find that an appropriate choice of the metric removes…

General Relativity and Quantum Cosmology · Physics 2012-10-02 Takuya Maki , Nahomi Kan , Kiyoshi Shiraishi

For a class of $\mathbb{R}^d$-ations and $\mathbb{Z}^d$-actions on the $n$-dimensional torus $\mathbb{T}^n$, we characterize their unique ergodicity and establish a theorem of Weyl type. This result allows us to establish an isomorphism…

Classical Analysis and ODEs · Mathematics 2025-12-09 Aihua Fan , Kai Jiang , Pingwen Zhang

We study Lusin-measurable functions with values in locally convex spaces. In particular, the behavior of pointwise limits of sequences of Lusin-measurable functions and exhibit pathological phenomena arising in the nonmetrizable setting.…

Functional Analysis · Mathematics 2026-05-29 Matthieu F. Pinaud , Humberto Prado

A higher level analog of Weyl modules over multi-variable currents is proposed. It is shown that the sum of their dual spaces form a commutative algebra. The structure of these modules and the geometry of the projective spectrum of this…

Quantum Algebra · Mathematics 2010-12-15 B. Feigin , A. N. Kirillov , S. Loktev

We prove a Montel theorem for Hilbert space valued functions, and a non-commutative version of this theorem, by composing with unitaries to achieve convergence.

Functional Analysis · Mathematics 2017-06-20 Jim Agler , John E. McCarthy

We have revisited the gradient-flow in information geometry from the perspective of Weyl symmetry. The gradient-flow equations are derived from the proposed action which is invariant under the Weyl's gauge transformations. In Weyl…

General Relativity and Quantum Cosmology · Physics 2025-08-04 Tatsuaki Wada , Sousuke Noda

Local Weyl modules over two-dimensional currents with values in $gl_r$ are deformed into spaces with bases related to parking functions. Using this construction we 1) propose a simple proof that dimension of the space of diagonal…

Quantum Algebra · Mathematics 2010-12-15 B. Feigin , S. Loktev

For the Weyl-Heisenberg group, convolutions between functions and operators were defined by Werner as a part of a framework called quantum harmonic analysis. We show how recent results by Feichtinger can be used to extend this definition to…

Functional Analysis · Mathematics 2024-10-11 Hans G. Feichtinger , Simon Halvdansson , Franz Luef

The $\alpha$-modulation transform is a time-frequency transform generated by square-integrable representations of the affine Weyl-Heisenberg group modulo suitable subgroups. In this paper we prove new conditions that guarantee the…

Functional Analysis · Mathematics 2016-03-02 Michael Speckbacher , Dominik Bayer , Stephan Dahlke , Peter Balazs

We investigate the possibility that the observed behavior of test particles outside galaxies, which is usually explained by assuming the existence of dark matter, is the result of the dynamical evolution of particles in a Weyl type…

General Relativity and Quantum Cosmology · Physics 2024-11-18 Piyabut Burikham , Tiberiu Harko , Kulapant Pimsamarn , Shahab Shahidi

We introduce a natural definition of $L^p$-convergence of maps, $p \ge 1$, in the case where the domain is a convergent sequence of measured metric space with respect to the measured Gromov-Hausdorff topology and the target is a…

Differential Geometry · Mathematics 2007-05-23 Kazuhiro Kuwae , Takashi Shioya

In this paper, we first introduce some new kinds of weighted amalgam spaces. Then we deal with the vector-valued intrinsic square functions, which are given by \begin{equation*} \mathcal S_\gamma(\vec{f})(x) = \Bigg(\sum_{j=1}^\infty…

Classical Analysis and ODEs · Mathematics 2017-12-06 Hua Wang

Let $F$ be a function with values in a Banach space. When $F$ is locally (Pettis or Bochner) integrable with respect to a locally determined positive measure, a vector measure $\nu_F$ with density $F$ defined on a $\delta$-ring is obtained.…

Functional Analysis · Mathematics 2020-01-27 Celia Avalos-Ramos

We study the large source asymptotics of the generating functional in quantum field theory using the holographic renormalization group, and draw comparisons with the asymptotics of the Hopf characteristic function in fractal geometry. Based…

High Energy Physics - Theory · Physics 2019-03-08 Gerald Guralnik , Zachary Guralnik , Cengiz Pehlevan

An extension to higher dimensions of the Bel-Debever characterization of the Weyl tensor is considered. This provides algebraic conditions that uniquely determine the multiplicity of a Weyl aligned null direction (WAND), and thus the…

General Relativity and Quantum Cosmology · Physics 2009-10-02 Marcello Ortaggio

In this paper we develop a rigorous foundation for the study of integration and measures on the space $\mathscr{G}(V)$ of all graphs defined on a countable labelled vertex set $V$. We first study several interrelated $\sigma$-algebras and a…

Classical Analysis and ODEs · Mathematics 2015-06-05 Apoorva Khare , Bala Rajaratnam

We initiate a functorial study of ample C$^*$-diagonal pairs and their Weyl groupoids, focusing on how certain well-behaved $*$-homomorphisms induce geometric maps between the associated groupoids. Given a morphism between diagonal pairs…

Operator Algebras · Mathematics 2026-05-26 Ali Jabbari

We consider Fourier transform of vector-valued functions on a locally compact group $G$, which take value in a Banach space $X$, and are square-integrable in Bochner sense. If $G$ is a finite group then Fourier transform is a bounded…

Functional Analysis · Mathematics 2008-09-01 Yauhen Radyna , Anna Sidorik
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