Results 11 to 20 of about 1,766,233 (264)

A classification of hull operators in archimedean lattice-ordered groups with unit [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2020
The category, or class of algebras, in the title is denoted by $\bf W$. A hull operator (ho) in $\bf W$ is a reflection in the category consisting of $\bf W$ objects with only essential embeddings as morphisms.
Ricardo E. Carrera, Anthony W. Hager
doaj   +1 more source

Exploring Citizenship Unit III: My Clubs and Groups

open access: yesEDIS, 2018
The 4-H Citizenship Project offers you the opportunity to help 4-H members relate all of their 4-H projects and experiences to the world around them.
Joy Jordan
doaj   +5 more sources

Simultaneous allergic traits in dogs and their owners are associated with living environment, lifestyle and microbial exposures

open access: yesScientific Reports, 2020
Both humans and pet dogs are more prone to develop allergies in urban than in rural environments, which has been associated with the differing microbial exposures between areas.
Jenni Lehtimäki   +5 more
doaj   +1 more source

Memory SARS-CoV-2 T-cell response in convalescent COVID-19 patients with undetectable specific IgG antibodies: a comparative study

open access: yesFrontiers in Immunology, 2023
BackgroundDuring the COVID-19 pandemic, a variable percentage of patients with SARS-CoV-2 infection failed to elicit humoral response. This study investigates whether patients with undetectable SARS-CoV-2 IgG are able to generate SARS-CoV-2 memory T ...
Raquel Fernández-Moreno   +17 more
doaj   +1 more source

On sets with unit Hausdorff density in homogeneous groups

open access: yesForum of Mathematics, Sigma, 2023
It is a longstanding conjecture that given a subset E of a metric space, if E has unit $\mathscr {H}^{\alpha }\llcorner E$ -density almost everywhere, then E is an $\alpha $ -rectifiable set. We prove this conjecture under the assumption that
Antoine Julia, Andrea Merlo
doaj   +1 more source

Group algebras with an Engel group of units [PDF]

open access: yesJournal of the Australian Mathematical Society, 2006
AbstractLet F be a field of characteristic p and G a group containing at least one element of order p. It is proved that the group of units of the group algebra FG is a bounded Engel group if and only if FG is a bounded Engel algebra, and that this is the case if and only if G is nilpotent and has a normal subgroup H such that both the factor group G/H
openaire   +2 more sources

Group Identities on Units of Group Algebras

open access: yesJournal of Algebra, 2000
Let \(U\) be the group of units of the group algebra \(FG\), where \(G\) is a group and \(F\) is a field. This paper is concerned with determining when \(U\) satisfies a group identity. If \(G\) is torsion, then this question was settled in recent years, thereby yielding an affirmative solution to Hartley's problem.
Giambruno, A., Sehgal, S.K., Valenti, A.
openaire   +2 more sources

On unit group of finite semisimple group algebras of non-metabelian groups up to order 72 [PDF]

open access: yesMathematica Bohemica, 2021
We characterize the unit group of semisimple group algebras $\mathbb{F}_qG$ of some non-metabelian groups, where $F_q$ is a field with $q=p^k$ elements for $p$ prime and a positive integer $k$.
Gaurav Mittal, Rajendra Kumar Sharma
doaj   +1 more source

Free Unit Groups in Group Algebras

open access: yesJournal of Algebra, 2001
Let \(K\) be a field and \(G\) be a finite group, which satisfies one of the following conditions: (i) \(K\) is of characteristic \(0\) and \(G\) is nonabelian; (ii) \(K\) is of characteristic \(p\) and for the largest normal \(p\)-subgroup \(P\) of \(G\) the factor-group \(G/P\) is nonabelian.
Gonçalves, J.Z, Passman, D.S
openaire   +1 more source

Unit groups of integral group rings [PDF]

open access: yesProceedings of the American Mathematical Society, 1994
Let U ( Z G )
openaire   +2 more sources

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