Results 91 to 100 of about 3,682,623 (208)

A note on the cohomology of moduli spaces of local shtukas

Bulletin of the London Mathematical Society, Volume 57, Issue 12, Page 3709-3729, December 2025.
Abstract We study localized versions of spectral action of Fargues–Scholze, using methods from higher algebra. As our main motivation and application, we deduce a formula for the cohomology of moduli spaces of local shtukas under certain genericity assumptions, and discuss its relation with the Kottwitz conjecture.
David Hansen, Christian Johansson
wiley   +1 more source

Non-nilpotent groups with three conjugacy class of non-normal subgroups [PDF]

International Journal of Group Theory, 2014
For a finite group $G$ let $nu(G)$ denote the number of conjugacy classes of non-normal subgroups of $G$. The aim of this paper is to classify all the non-nilpotent groups with $nu(G)=3$.
Hamid Mousavi
doaj  

Counting conjugacy classes for unitriangular matrices

Linear Algebra and its Applications, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Vera-López, A., García-Sánchez, M. A.
openaire   +2 more sources

A categorical interpretation of continuous orbit equivalence for partial dynamical systems

Bulletin of the London Mathematical Society, Volume 57, Issue 12, Page 3637-3656, December 2025.
Abstract We define the orbit morphism of partial dynamical systems and prove that an orbit morphism being an isomorphism in the category of partial dynamical systems and orbit morphisms is equivalent to the existence of a continuous orbit equivalence between the given partial dynamical systems that preserves the essential stabilisers. We show that this
Gilles G. de Castro, Eun Ji Kang
wiley   +1 more source

Solving Large-Scale Unconstrained Optimization Problems with an Efficient Conjugate Gradient Class

Journal of Mathematics
The main goal of this paper is to introduce an appropriate conjugate gradient class to solve unconstrained optimization problems. The presented class enjoys the benefits of having three free parameters, its directions are descent, and it can fulfill the ...
Sanaz Bojari, Mahmoud Paripour
doaj   +1 more source

Mutually permutable products and conjugacy classes

Monatshefte für Mathematik, 2012
Let \(G\) be a group, two subgroups \(H\) and \(K\) of \(G\) are `permutable' if the set \(HK\) is a subgroup of \(G\), they are `mutually permutable' if \(H\) permutes with every subgroup of \(K\) and \(K\) permutes with every subgroup of \(H\). Let the (finite) group \(G=G_1G_2\cdots G_r\) be the product of pairwise permutable subgroups \(G_1,G_2 ...
Ballester-Bolinches, Adolfo, Cossey, Peter (John), Li, Yangming   +2 more
openaire   +3 more sources

Generation by Conjugate Elements of Finite Almost Simple Groups With a Sporadic Socle

Известия Иркутского государственного университета: Серия "Математика"
We study the minimum number of elements in the conjugacy class of an automorphism of a sporadic simple group that generate a subgroup containing all inner automorphisms.
D. O. Revin, A. V. Zavarnitsine
doaj   +1 more source

Structure of group invariants of a quasiperiodic flow

Electronic Journal of Differential Equations, 2004
It is shown that the multiplier representation of the generalized symmetry group of a quasiperiodic flow induces a semidirect product structure on certain group invariants (including the generalized symmetry group) of the flow's smooth conjugacy class.
Lennard F. Bakker
doaj  

Cryptanalysis of matrix conjugation schemes

Journal of Mathematical Cryptology, 2014
In this paper we cryptanalyze two protocols: the Grigoriev–Shpilrain authentication protocol and a public key cryptosystem due to Wang, Wang, Cao, Okamoto and Shao.
Myasnikov Alex D., Ushakov Alexander
doaj   +1 more source

Boundedly finite conjugacy classes of tensors

International Journal of Group Theory, 2019
Let $n$ be a positive integer and let $G$ be a group. We denote by $ν(G)$ a certain extension of the non-abelian tensor square $G \otimes G$ by $G \times G$. Set $T_{\otimes}(G) = \{g \otimes h \mid g,h \in G\}$. We prove that if the size of the conjugacy class $\left |x^{ν(G)} \right| \leq n$ for every $x \in T_{\otimes}(G)$, then the second derived ...
Bastos, R, Monetta, C
openaire   +4 more sources