Results 21 to 30 of about 2,160,854 (336)

Groups, Rings, Group Rings, and Hopf Algebras

open access: green, 2017
Jeffrey Bergen   +5 more
openalex   +3 more sources

Group extensions and automorphism group rings [PDF]

open access: yesHomology, Homotopy and Applications, 2003
The group ring of the automorphism group of a p-group is studied using the automorphism groups of subgroups and quotient groups of P.
Martino, John, Priddy, Stewart
openaire   +4 more sources

Study on Deformation Characteristics of Low-Highway Subgrade under Traffic Load

open access: yesApplied Sciences, 2022
Highway subgrade bears millions of traffic loads over the years, and its strength, stiffness, and long-term stability gradually decline. In this paper, dynamic triaxial tests were carried out to study the time evolution and spatial distribution of strain
Hui Qi   +6 more
doaj   +1 more source

Hopfian additive groups of rings [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
A group is called Hopfian  if it is not isomorphic to any of its proper factor groups, or, equivalently, any of its epimorphisms on itself is an isomorphism, i.e., an automorphism. This property was first proved by the Swiss mathematician H.
Kaigorodov, Evgeniy Vladimirovich
doaj   +1 more source

Representations of group rings and groups [PDF]

open access: yesInternational Journal of Group Theory, 2018
An isomorphism between the group ring of a finite group and a ring of certain block diagonal matrices is established. It is shown that for any group ring matrix $A$ of $mathbb{C} G$ there exists a matrix $U$ (independent of $A$) such that $U^{-1}AU= diag(
Ted Hurley
doaj   +1 more source

The notions of the SMARANDACHE GROUP and the SMARANDACHE BOOLEAN RING [PDF]

open access: yes, 2000
The notions of the Snmarandache group and the Smarandache Boolean ring are introduced here with the help of group action and ring action i.e. module respectively. The centre of the Smarandache groupoid is determined.
Talukdar, D.
core   +1 more source

On one class of modules over group rings with finiteness restrictions [PDF]

open access: yesInternational Journal of Group Theory, 2014
The author studies the $bf R$$G$-module $A$ such that $bf R$ is an associative ring, a group $G$ has infinite section $p$-rank (or infinite 0-rank), $C_{G}(A)=1$, and for every proper subgroup $H$ of infinite section $p$-rank (or infinite 0-rank ...
Olga Dashkova
doaj  

Development of Rotaxanes as E-Field-Sensitive Superstructures in Plasmonic Nano-Antennas

open access: yesOrganic Materials, 2022
We present the concept of electrostatic field-driven supramolecular translation within electrically connected plasmonic nano-antennas. The antenna serves as an anchoring point for the mechanically interlocked molecules, as an electrode for the ...
Laurent Jucker   +5 more
doaj   +1 more source

Non-integrality of some Steinberg modules [PDF]

open access: yes, 2019
We prove that the Steinberg module of the special linear group of a quadratic imaginary number ring which is not Euclidean is not generated by integral apartments.
Miller, Jeremy   +3 more
core   +1 more source

Integration of Nodal and BMP Signaling by Mutual Signaling Effector Antagonism

open access: yesCell Reports, 2020
Summary: Opposing sources of bone morphogenetic protein (BMP) and Nodal signaling molecules are sufficient to induce the formation of a full axis in zebrafish embryos.
Gary Huiming Soh   +2 more
doaj   +1 more source

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