Results 71 to 80 of about 15,340,598 (357)

On finite arithmetic groups [PDF]

open access: yesInternational Journal of Group Theory, 2013
Let $F$ be a finite extension of $Bbb Q$, ${Bbb Q}_p$ or a globalfield of positive characteristic, and let $E/F$ be a Galois extension.We study the realization fields offinite subgroups $G$ of $GL_n(E)$ stable under the naturaloperation of the Galois ...
Dmitry Malinin
doaj  

Sums of prime element orders in finite groups

open access: yesJournal of Taibah University for Science, 2018
Let G be a finite group and $\psi _*(G)$ denote the sum of prime element orders of G. This paper presents some properties of $\psi _*$ and investigate the minimum value and the maximum value of $\psi _*$ on the set of groups of the same order.
C. Beddani, W. Messirdi
doaj   +1 more source

FINITE -GROUPS WITH SMALL AUTOMORPHISM GROUP [PDF]

open access: yesForum of Mathematics, Sigma, 2015
For each prime$p$we construct a family$\{G_{i}\}$of finite$p$-groups such that$|\text{Aut}(G_{i})|/|G_{i}|$tends to zero as$i$tends to infinity. This disproves a well-known conjecture that$|G|$divides$|\text{Aut}(G)|$for every nonabelian finite$p$-group$G$.
JON GONZÁLEZ-SÁNCHEZ   +1 more
openaire   +4 more sources

Algorithmically complex residually finite groups [PDF]

open access: yes, 2012
We construct the first examples of algorithmically complex finitely presented residually finite groups and the first examples of finitely presented residually finite groups with arbitrarily large (recursive) Dehn functions, and arbitrarily large depth ...
O. Kharlampovich, A. Myasnikov, M. Sapir
semanticscholar   +1 more source

Effect of Foot Orthoses on Midfoot Pain and the Volume of Bone Marrow Lesions in the Midfoot: A Randomized Mechanism of Action Study

open access: yesArthritis Care &Research, EarlyView.
Objective Foot orthoses are thought to improve pain by potentially modifying internal mechanical forces. To test this, we explored whether foot orthoses can modify patterns of bone marrow lesions (BMLs) in people with midfoot pain. Methods Forty‐two people were recruited with midfoot pain, and magnetic resonance imaging–confirmed midfoot BMLs ...
Jill Halstead   +4 more
wiley   +1 more source

On finite C-tidy groups [PDF]

open access: yesInternational Journal of Group Theory, 2013
A group G is said to be a C-tidy group if for every element x € G K(G), the set Cyc(x)={y € G | is cyclic} is a cyclic subgroup of G, where K(G) is the intersection of all the Cyc(x) in G.
Sekhar Jyoti Baishya
doaj  

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Maximal subgroups of the group PSL(12, 2) [PDF]

open access: yesSurveys in Mathematics and its Applications, 2011
In this paper, We will find the maximal subgroups of the group PSL(12, 2) by Aschbacher's Theorem [M. Aschbacher, Invent. Math. 1984]
Rauhi Ibrahim Elkhatib
doaj  

Random graph products of finite groups are rational duality groups

open access: yes, 2013
Given an edge-independent random graph G(n,p), we determine various facts about the cohomology of graph products of groups for the graph G(n,p). In particular, the random graph product of a sequence of finite groups is a rational duality group with ...
Davis, Michael W., Kahle, Matthew
core   +1 more source

Understanding the Effect of Resistance Temperature Detector Temperature Controllers on Microstructural Alignment in Magnetic Freeze Casting

open access: yesAdvanced Engineering Materials, EarlyView.
The effect of temperature controllers that are commonly used in freeze‐casting is investigated in this work. Temperature controllers are observed to generate a voltage in the slurry. Microstructural alignment and ultimate compressive strength data show this voltage to interfere with the ability to align the microstructure using magnetic fields ...
Maddie A. Schmitz, Steven E. Naleway
wiley   +1 more source

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