Results 261 to 270 of about 12,435 (301)

Primitive Characters of Liangzhu

Liangzhu Civilization Series, 2022
Xuefei Zhu
exaly   +2 more sources

GAUSS SUMS AND PRIMITIVE CHARACTERS

Quarterly Journal of Mathematics, 1945
A P Guinand
exaly   +3 more sources

Induced characters, Mackey analysis and primitive ideal spaces of nilpotent discrete groups

Journal of Functional Analysis, 2006
Let G be a nilpotent discrete group and Prim(C*(G)) the primitive ideal space of the group C*-algebra C*(G). If G is either finitely generated or has absolutely idempotent characters, we are able to describe the hull-kernel topology on Prim(C*(G)) in ...
Eberhard Kaniuth
exaly   +2 more sources

Primitive Ideal Spaces, Characters, and Kirillov Theory for Discrete Nilpotent Groups

Journal of Functional Analysis, 1997
This paper is concerned with several topics in the harmonic analysis of discrete nilpotent groups. We study two topologies on the primitive ideal space and the space of characters, the separation of points in the former with the hull-kernel topology, a ...
Lawrence W Baggett, Eberhard Kaniuth, Bill Moran   +2 more
exaly   +2 more sources

On primitivity of Dirichlet characters

International Journal of Number Theory, 2015
Recall that a Dirichlet character is called imprimitive if it is induced from a character of smaller level, and otherwise it is called primitive. In this paper, we introduce a modification of "inducing to higher level" which causes imprimitive characters to behave primitively, in the sense that the properties of the associated Gauss sum and the ...
Daileda, R., Jones, N.
openaire   +1 more source

Primitive characters of maximal subgroups of solvable groups

Journal of Algebra, 2010
Let G be an M-group, and suppose that H is a maximal subgroup of odd index and that β∈IrrH is primitive. It was shown by Mark Lewis that β(1)2 divides |G:H|. We show in this situation that either β(1)2=|G:H| or β(1)=1.
Isaacs, I.M., Wilde, Tom
exaly   +2 more sources

Primitive character degrees of solvable groups

Journal of Algebra, 2021
The authors generalize some recent results of \textit{C. Marchi} [J. Algebra 547, 345--357 (2020; Zbl 1451.20001)]. Namely, they prove that if \(G\) is a finite group, and \(\chi\) is a non-linear primitive irreducible character of \(G\) where \(G\) is \(\pi(\chi(1))\)-solvable then all of the following hold: \begin{enumerate} \item \(\chi(1)\) is ...
Jin, Ping, Yang, Yong
openaire   +2 more sources

On the Schur Index of Quasi-Primitive Characters

Journal of the London Mathematical Society, 1987
A way to calculate the Schur index of a quasi-primitive character of a finite group via factorizations of characters [see \textit{P. Ferguson} and \textit{A. Turull}, Math. Z. 190, 583-604 (1985; Zbl 0577.20006)] is given. It follows from it that, if the Schur indexes of the irreducible characters of the covering groups of the finite simple groups are ...
openaire   +2 more sources

Primitives segmentation and association for a line character

Proceedings of 2nd International Conference on Document Analysis and Recognition (ICDAR '93), 2002
An effective approach to perform segmentation and association among line primitives and junctions for a line image is presented. The concerned problem is that the sensitivity and liability of lines appears in conventional thinning methods. This demerit become an impediment to extract effective line features in the neighborhood of a junction.
openaire   +1 more source

Word Retrieval in Historical Document Using Character-Primitives

2011 International Conference on Document Analysis and Recognition, 2011
Word searching and indexing in historical document collections is a challenging problem because, characters in these documents are often touching or broken due to degradation/ ageing effects. For efficient searching in such historical documents, this paper presents a novel approach towards word spotting using string matching of character primitives. We
Partha Pratim Roy 0001, Jean-Yves Ramel, Nicolas Ragot   +2 more
openaire   +2 more sources