Results 21 to 30 of about 1,287 (264)

Anchors of irreducible characters [PDF]

open access: yesJournal of Algebra, 2017
Given a prime number $p$, every irreducible character $χ$ of a finite group $G$ determines a unique conjugacy class of $p$-subgroups of $G$ which we will call the anchors of $χ$. This invariant has been considered by L. Barker in the context of finite $p$-solvable groups.
Kessar, R.; id_orcid 0000-0002-1893-4237   +2 more
openaire   +5 more sources

On the irreducible characters of Suzuki p-groups

open access: yesJournal of Algebra and Its Applications, 2022
In this paper, we completely determine the irreducible characters of the four families of Suzuki [Formula: see text]-groups.
Wendi Di, Tao Feng, Zhiwen He
openaire   +3 more sources

Algorithmically Distinguishing Irreducible Characters of the Symmetric Group [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2021
Suppose that $\chi_\lambda$ and $\chi_\mu$ are distinct irreducible characters of the symmetric group $S_n$. We give an algorithm that, in time polynomial in $n$, constructs $\pi\in S_n$ such that $\chi_\lambda(\pi)$ is provably different from $\chi_\mu(\pi)$. In fact, we show a little more.
Timothy Y. Chow, Jennifer Paulhus
openaire   +3 more sources

On irreducible characters of the Iwahori-Hecke algebra in type A [PDF]

open access: yesJournal of Algebra, 2022
We use vertex operators to compute irreducible characters of the Iwahori-Hecke algebra of type $A$. Two general formulas are given for the irreducible characters in terms of those of the symmetric groups or the Iwahori-Hecke algebras in lower degrees. Explicit formulas are derived for the irreducible characters labeled by hooks and two-row partitions ...
Naihuan Jing, Ning Liu
openaire   +3 more sources

Spin Characters' Decomposition Matrices of S27, S28modulo, p=13

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences
In this study, when the field characteristic is 13, we calculate decomposition matrices for the spin characters   and   which are broken down into blocks, where the decomposition matrices are connected between irreducible spin characters and irreducible
Ahmed H. Jassim, Saeed A. Taban
doaj   +1 more source

Evaluations of Hecke algebra traces at Kazhdan-Lusztig basis elements [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2013
For irreducible characters $\{ \chi_q^{\lambda} | \lambda \vdash n\}$ and induced sign characters $\{\epsilon_q^{\lambda} | \lambda \vdash n\}$ of the Hecke algebra $H_n(q)$, and Kazhdan-Lusztig basis elements $C'_w(q)$ with $w$ avoiding the pattern 312,
Sam Clearman   +3 more
doaj   +1 more source

Irreducible Products of Characters

open access: yesJournal of Algebra, 2000
Let \(G\) be a finite group, \(\alpha,\beta\in\text{Irr}(G)\). In this paper the author asks when it can happen that the product \(\alpha\beta\in\text{Irr}(G)\). He considers the most interesting case where \(\alpha\) and \(\beta\) are faithful. ``We have been unable to find a noncyclic solvable example (with irreducible \(\alpha\beta\)), however, and ...
openaire   +2 more sources

The N = 1 Triplet Vertex Operator Superalgebras: Twisted Sector

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2008
We classify irreducible σ-twisted modules for the N = 1 super triplet vertex operator superalgebra SW(m) introduced recently [Adamovic D., Milas A., Comm. Math. Phys., to appear, arXiv:0712.0379].
Drazen Adamovic, Antun Milas
doaj   +1 more source

On the Irreducible Characters of Camina Triples

open access: yesپژوهش‌های ریاضی, 2020
The Camina triple condition is a generalization of the Camina condition in the theory of finite groups. The irreducible characters of Camina triples have been verified in the some special cases.
Javad Bagherian
doaj  

Character expansiveness in finite groups [PDF]

open access: yesInternational Journal of Group Theory, 2013
We say that a finite group $G$ is conjugacy expansive if for anynormal subset $S$ and any conjugacy class $C$ of $G$ the normalset $SC$ consists of at least as many conjugacy classes of $G$ as$S$ does.
Attila Maroti   +2 more
doaj  

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