Results 21 to 30 of about 195,139 (314)

Semiparametric estimation of shifts on compact Lie groups for image registration [PDF]

, 2008
In this paper we focus on estimating the deformations that may exist between similar images in the presence of additive noise when a reference template is unknown. The deformations aremodeled as parameters lying in a finite dimensional compact Lie group.
Vimond, Myriam, Bigot, Jérémie, Loubes, Jean-Michel   +2 more
core   +1 more source

A note on compact groups [PDF]

Proceedings of the American Mathematical Society, 1983
We show that the product of certain subsets in a compact connected topological group is the group itself.
openaire   +2 more sources

COMMUTING PROBABILITY OF COMPACT GROUPS [PDF]

Bulletin of the Australian Mathematical Society, 2021
AbstractFor any (Hausdorff) compact group G, denote by $\mathrm{cp}(G)$ the probability that a randomly chosen pair of elements of G commute. We prove that there exists a finite group H such that $\mathrm{cp}(G)= {\mathrm{cp}(H)}/{|G:F|^2}$ , where F is the FC-centre of G and H is isoclinic to F with $\mathrm{cp}(F)=\mathrm{cp}(H)$ whenever ...
ALIREZA ABDOLLAHI, MEISAM SOLEIMANI MALEKAN   +1 more
openaire   +2 more sources

Sobolev Spaces on Locally Compact Abelian Groups: Compact Embeddings and Local Spaces

Journal of Function Spaces, 2014
We continue our research on Sobolev spaces on locally compact abelian (LCA) groups motivated by our work on equations with infinitely many derivatives of interest for string theory and cosmology.
Przemysław Górka, Tomasz Kostrzewa, Enrique G. Reyes   +2 more
doaj   +1 more source

A Characterization of Compact Groups [PDF]

Proceedings of the American Mathematical Society, 1979
It is shown that the group algebra L 1
openaire   +2 more sources

Compact Groups and Their Representations [PDF]

, 2006
This is an overview article on compact Lie groups and their representations, written for the Encyclopedia of Mathematical Physics to be published by Elsevier.
Kirillov, Alexandre, Kirillov Jr, Alexander   +1 more
openaire   +2 more sources

On T-Characterized Subgroups of Compact Abelian Groups

Axioms, 2015
A sequence \(\{ u_n \}_{n\in \omega}\) in abstract additively-written Abelian group \(G\) is called a \(T\)-sequence if there is a Hausdorff group topology on \(G\) relative to which \(\lim_n u_n =0\).
Saak Gabriyelyan
doaj   +1 more source

A Characterization of Compact Groups [PDF]

Proceedings of the American Mathematical Society, 1971
A locally compact group is compact if and only if it is of type I and has discrete spectrum (equivalently: its C ∗
openaire   +2 more sources

Haar Measure for non-Hausdorff Locally Compact Groups [PDF]

Advances in Group Theory and Applications
The paper describes two possible ways of extending the definition of Haar measure to non-Hausdorff locally compact groups. The first one forces compact sets to be measurable: with this construction, a counterexample to the existence of the Haar measure ...
Lisa Valentini
doaj   +1 more source

Probabilities on a compact group [PDF]

Transactions of the American Mathematical Society, 1960
Let G be an arbitrary compact Hausdorff group. A probability measure on G is a non-negative, real-valued, countably additive, regular Borel measure ,u on G such that ,t(G) = 1. If ,t and X are two probability measures on G then their convolution A * X is also a probability measure on G.
openaire   +2 more sources