Results 11 to 20 of about 309,572 (237)

Asymptotic invariants of lattices in locally compact groups

open access: yesComptes Rendus. Mathématique, 2023
The aim of this work is to understand some of the asymptotic properties of sequences of lattices in a fixed locally compact group. In particular we will study the asymptotic growth of the Betti numbers of the lattices renormalized by the covolume and the
Carderi, Alessandro
doaj   +1 more source

Locally compact convergence groups and n-transitive actions [PDF]

open access: yes, 2012
All sigma-compact, locally compact groups acting sharply n-transitively and continuously on compact spaces M have been classified, except for n=2,3 when M is infinite and disconnected. We show that no such actions exist for n=2 and that these actions for
Carette, Mathieu, Dreesen, Dennis
core   +1 more source

Coherent Frames [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2018
Frames which can be generated by the action of some operators (e.g. translation, dilation, modulation, ...) on a single element $f$ in a Hilbert space, called coherent frames.
Ataollah Askari Hemmat   +2 more
doaj   +1 more source

The weights of closed subgroups of a locally compact group [PDF]

open access: yes, 2012
Let $G$ be an infinite locally compact group and $\aleph$ a cardinal satisfying $\aleph_0\le\aleph\le w(G)$ for the weight $w(G)$ of $G$. It is shown that there is a closed subgroup $N$ of $G$ with $w(N)=\aleph$.
Hernández, Salvador   +2 more
core   +2 more sources

Kirchberg-Wassermann exactness vs exactness: reduction to the unimodular totally disconnected case [PDF]

open access: yes, 2018
We show that in order to prove that all locally compact groups with exact reduced group C∗-algebras are exact in the dynamical sense (i.e., KW-exact), it suffices to show this for totally disconnected locally compact ...
Cave, Chris, Zacharias, Joachim
core   +2 more sources

Induction and restriction as adjoint functors on representations of locally compact groups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1993
In this paper the Frobenius Reciprocity Theorem for locally compact groups is looked at from a category theoretic point of view.
Robert A. Bekes, Peter J. Hilton
doaj   +1 more source

A Stone-Weierstrass theorem for group representations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1978
It is well known that if G is a compact group and π a faithful (unitary) representation, then each irreducible representation of G occurs in the tensor product of some number of copies of π and its contragredient. We generalize this result to a separable
Joe Repka
doaj   +1 more source

Properties of locally semi-compact Ir-topological groups

open access: yesOpen Mathematics, 2023
This study investigates some topological properties of locally semi-compact Ir-topological groups and establishes the relationship between Ir-topological groups and semi-compact spaces.
Wang ZhongLi, Teh Wen Chean
doaj   +1 more source

Generalized Analogs of the Heisenberg Uncertainty Inequality [PDF]

open access: yes, 2015
We investigate locally compact topological groups for which a generalized analogue of Heisenberg uncertainty inequality hold. In particular, it is shown that this inequality holds for $\mathbb{R}^n \times K$ (where $K$ is a separable unimodular locally ...
Bansal, Ashish, Kumar, Ajay
core   +2 more sources

Computing the Scale of an Endomorphism of a totally Disconnected Locally Compact Group

open access: yesAxioms, 2017
The scale of an endomorphism of a totally disconnected, locally compact group G is defined and an example is presented which shows that the scale function is not always continuous with respect to the Braconnier topology on the automorphism group of G ...
George A. Willis
doaj   +1 more source

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