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Related papers: A generalized Fej\'er's theorem for locally compac…

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We present a selection of results contributing to a structure theory of totally disconnected locally compact groups.

Group Theory · Mathematics 2021-10-13 Pierre-Emmanuel Caprace , George A. Willis

We obtain a set of generalized eigenvectors that provides a generalized spectral decomposition for a given unitary representation of a commutative, locally compact topological group. These generalized eigenvectors are functionals belonging…

Mathematical Physics · Physics 2007-05-23 M. Gadella , F. Gomez , S. Wickramasekara

We prove a Grothendieck-Lefschetz theorem for equivariant Picard groups of non-singular varieties with finite group actions.

Algebraic Geometry · Mathematics 2017-12-22 Charanya Ravi

In this paper we extend classical Titchmarsh theorems on the Fourier transform of H\"older-Lipschitz functions to the setting of compact homogeneous manifolds. As an application, we derive a Fourier multiplier theorem for…

Functional Analysis · Mathematics 2017-02-21 Radouan Daher , Julio Delgado , Michael Ruzhansky

We study generalized complex manifolds from the point of view of symplectic and Poisson geometry. We start by showing that every generalized complex manifold admits a canonical Poisson structure. We use this fact, together with Weinstein's…

Differential Geometry · Mathematics 2007-05-23 Mohammed Abouzaid , Mitya Boyarchenko

The aim of this paper is to prove a fixed point theorem on a generalised cone metric spaces for maps satisfying general contractive type conditions.

Classical Analysis and ODEs · Mathematics 2016-10-04 Sudip Kumar Pal , Manojit Maity

We prove the finiteness of the kernel of the localization map in the Galois cohomology of a connected reductive group over a global field

Number Theory · Mathematics 2023-09-22 Dylon Chow

We derive extensions of the monomialization theorems for morphisms of varieties in our earlier work. In this note we show that a local monomialization can be found which satisfies stronger local conditions. Some comments are made about how…

Algebraic Geometry · Mathematics 2016-12-05 Steven Dale Cutkosky

The purpose of this article is to present a "Groupoid proof" to the Lefschetz fixed point formula for elliptic complexes. We shall define a "relative version" of tangent groupoid, describe the corresponding pseudodifferential calculi and…

Differential Geometry · Mathematics 2020-12-30 Zelin Yi

Let G be a locally compact, Hausdorff groupoid in which s is a local homeomorphism and the unit space is totally disconnected. Assume there is a continuous cocycle c from G into a discrete group $\Gamma$. We show that the collection A(G) of…

Rings and Algebras · Mathematics 2012-02-07 Lisa Orloff Clark , Cynthia Farthing , Aidan Sims , Mark Tomforde

In this work we define operator-valued Fourier transforms for suitable integrable elements with respect to the Plancherel weight of a (not necessarily Abelian) locally compact group. Our main result is a generalized version of the Fourier…

Functional Analysis · Mathematics 2009-03-26 Alcides Buss

In this article we observe that a locally compact group $G$ is completely determined by the algebraic properties of its Feichtinger's Segal algebra $S_0(G).$ Let $G$ and $H$ be locally compact groups. Then any linear (not necessarily…

Functional Analysis · Mathematics 2021-02-09 Lakshmi Lavanya Ramamurthy

We generalize a recent result of Clausen: For a number field with integers O, we compute the K-theory of locally compact O-modules. For the rational integers this recovers Clausen's result as a special case. Our method of proof is quite…

K-Theory and Homology · Mathematics 2017-10-31 Oliver Braunling

We prove the even isomorphism theorem for Coxeter groups

Group Theory · Mathematics 2007-05-23 Michael L. Mihalik

The Fourier-Stieltjes and Fourier algebras B(G), A(G) for a general locally compact group G, first studied by P. Eymard, have played an important role in harmonic analysis and in the study of operator algebras generated by G. Recently,…

Operator Algebras · Mathematics 2007-05-23 Alan L. T. Paterson

We establish a general normal subgroup theorem for commensurators of lattices in locally compact groups. While the statement is completely elementary, its proof, which rests on the original strategy of Margulis in the case of higher rank…

Group Theory · Mathematics 2014-09-19 Darren Creutz , Yehuda Shalom

We give an elementary proof of an analogue of Fej\'er's theorem in weighted Dirichlet spaces with superharmonic weights. This provides a simple way of seeing that polynomials are dense in such spaces.

Complex Variables · Mathematics 2020-11-06 Javad Mashreghi , Thomas Ransford

We consider an action of a countable amenable group on a compact metric space, focusing on the set of generic points with respect to a fixed F{\o}lner sequence. For a given characteristic class, we prove that the set of points that are…

Dynamical Systems · Mathematics 2025-10-31 Sejal Babel , Martha Łącka , Marcel Mroczek

We extend Exel's ample tight groupoid construction to non-ample groupoids, even in the general locally Hausdorff case.

General Topology · Mathematics 2020-09-18 Tristan Bice , Charles Starling

We prove a global topological rigidity theorem for locally $C^2$-non-discrete subgroups of the group of real analytic diffeomorphisms of the circle.

Dynamical Systems · Mathematics 2015-07-15 Anas Eskif , Julio C. Rebelo
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