Results 31 to 40 of about 49,400 (294)

A new characterization of Janko simple groups

open access: yesAIMS Mathematics
In this paper, we studied the influence of centralizers on the structure of groups, and demonstrated that Janko simple groups can be uniquely determined by two crucial quantitative properties: its even-order components of the group and the set $ \pi_{p_m}
Zhangjia Han, Jiang Hu , Dongyang He
doaj   +1 more source

Simple groups separated by finiteness properties [PDF]

open access: yesInventiones mathematicae, 2018
We show that for every positive integer $n$ there exists a simple group that is of type $\mathrm{F}_{n-1}$ but not of type $\mathrm{F}_n$. For $n\ge 3$ these groups are the first known examples of this kind. They also provide infinitely many quasi-isometry classes of finitely presented simple groups.
Skipper, Rachel   +2 more
openaire   +5 more sources

A lower bound on the number of finite simple groups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1980
Let S(n ...
Michael E. Mays
doaj   +1 more source

On a New Criterion for the Solvability of Non-Simple Finite Groups and m-Abelian Solvability

open access: yesJournal of Mathematics, 2021
This paper is devoted to introduce a sufficient condition for the solvability of finite groups. Also, it presents the concepts of m-abelian and m-cyclic solvability as new generalizations of solvability and polycyclicity, respectively.
Hasan Sankari, Mohammad Abobala
doaj   +1 more source

Chiral polyhedra and finite simple groups [PDF]

open access: yesBulletin of the London Mathematical Society, 2017
We prove that every finite non-abelian simple group acts as the automorphism group of a chiral polyhedron, apart from the groups $PSL_2(q)$, $PSL_3(q)$, $PSU_3(q)$ and $A_7$.
Martin W. Liebeck   +2 more
openaire   +5 more sources

Heterogeneity of Rheumatoid Arthritis‐Associated Interstitial Lung Disease by Longitudinal Forced Vital Capacity Trajectory and Associations with Disease Outcomes

open access: yesArthritis Care &Research, Accepted Article.
Objective We aimed to identify unique disease trajectories within rheumatoid arthritis‐associated interstitial lung disease (RA‐ILD) based on longitudinal forced vital capacity (FVC) values and their associated clinical outcomes. Methods We performed a cohort study of RA‐ILD within the Veterans Health Administration from 1999‐2021. RA‐ILD patients were
Bryant R. England   +9 more
wiley   +1 more source

Product decompositions in finite simple groups [PDF]

open access: yesBulletin of the London Mathematical Society, 2011
We propose a general conjecture on decompositions of finite simple groups as products of conjugates of an arbitrary subset. We prove this conjecture for bounded subsets of arbitrary finite simple groups, and for large subsets of groups of Lie type of bounded rank.
M. W. Liebeck, N. Nikolov, A. Shalev
openaire   +5 more sources

Data‐driven forecasting of ship motions in waves using machine learning and dynamic mode decomposition

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
Summary Data‐driven forecasting of ship motions in waves is investigated through feedforward and recurrent neural networks as well as dynamic mode decomposition. The goal is to predict future ship motion variables based on past data collected on the field, using equation‐free approaches.
Matteo Diez   +2 more
wiley   +1 more source

Quasirecognition by prime graph of finite simple groups ${}^2D_n(3)$ [PDF]

open access: yesInternational Journal of Group Theory, 2014
Let $G$ be a finite group. In [Ghasemabadi et al., characterizations of the simple group ${}^2D_n(3)$ by prime graph and spectrum, Monatsh Math., 2011] it is proved that if $n$ is odd, then ${}^2D _n(3)$ is recognizable by prime graph and also by ...
Behrooz Khosravi , Hossein Moradi
doaj  

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