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Adapted splittings for pairs (G,W)
(2019-02-15)
Let G be a group, W a G-set with [G:Gw]=∞ for all w∈W, where Gw denotes the point stabilizer of w∈W. Considering the restriction map resW G:H1(G,Z2G)→∏w∈EH1(Gw,Z2G), where E is a set of orbit representatives for the G-action ...
THE PYROCHLORE SUPERGROUP OF MINERALS: NOMENCLATURE
(MINERALOGICAL ASSOC CANADA, 2010)
A new scheme of nomenclature for the pyrochlore supergroup, approved by the CNMNC-IMA, is based on the ions at the A, B and Y sites. What has been referred to until now as the pyrochlore group should be referred to as the ...
Hypercentral unit groups and the hyperbolicity of a modular group algebra
(TAYLOR & FRANCIS INC, 2008)
We classify groups G such that the unit group U-1 (ZG) is hypercentral. In the second part, we classify groups G whose modular group algebra has hyperbolic unit groups U-1 (KG).
Block theory for profinite groups
(Universidade Federal de Minas GeraisBrasilPrograma de Pós-Graduação em MatemáticaUFMG, 2021-05-13)
The objective of this work is to study the techniques developed in the theory of blocks for finite groups and then, using the machinery of profinite groups and results from the modular representation theory of profinite ...
A morphology-based phylogeny of the Liolaemus alticolor-bibronii group (Iguania: Liolaemidae)
(Magnolia Press, 2013-06)
The genus Liolaemus was split in two subgenera, Liolaemus sensu stricto and Eulaemus. Inside the Liolaemus sensu stricto subgenus, many groups have been proposed. One of them is the L. alticolor-bibronii group. Here, I ...
A new species group of the genus Epicauta Dejean of Southern South America, the bella group (Coleoptera: Meloidae)
(Sociedade Entomológica do Brasil, 2011-03)
Epicauta (Coleoptera: Meloideae) includes two subgenera, and within the nominotypical subgenus several species groups. Analyzing species of southern South America, a set of species of Epicauta has the particularity to ...
The influence of leukocytospermia on the outcomes of assisted reproductive technology
(Biomed Central Ltd., 2012-06-15)
Background: It is not well established whether the increased number of leukocytes in the seminal fluid impairs the outcomes of assisted reproductive technology (ART). This investigation analysed the outcomes of the ...
INVOLUTIONS AND FREE PAIRS OF BASS CYCLIC UNITS IN INTEGRAL GROUP RINGS
(WORLD SCIENTIFIC PUBL CO PTE LTD, 2011)
Let ZG be the integral group ring of the finite nonabelian group G over the ring of integers Z, and let * be an involution of ZG that extends one of G. If x and y are elements of G, we investigate when pairs of the form ...
Quasitriangular Hopf algebras, braid groups and quantum entanglement
(2013)
The aim of the paper is to provide a method to obtain representations of the braid group through a set of quasitriangular Hopf algebras. In particular, these algebras may be derived from group algebras of cyclic groups ...
Some properties of e(G,w,ft g) and an application in the theory of splittings of groups
(2020-01-01)
Let us consider W a G-set and M a Z2G-module, where G is a group. In this paper we investigate some properties of the cohomological the theory of splittings of groups. Namely, we give a proof of the invariant E(G,W,M), ...