منابع مشابه
Normality in a Kantor Family
A Kantor family is a collection of subgroups from which a generalized quadrangle can be constructed using Kantor ' s idea. This paper considers the case in which some of the subgroups in the Kantor family or its related family are normal in the ambient finite group G. We show that if two members of a Kantor family are normal in G then G is elementary abelian and that if all members of the relat...
متن کاملFinite Groups that Admit Kantor Families
The basic problem of interest in this note is: What finite groups G admit a Kantor family (i.e., 4-gonal family) of subgroups? We begin with a survey of the known examples (of the groups G, not of the Kantor families) and then pose the question of whether or not two specific examples are isomorphic. The two groups in question have order q and coexist for q = 3 ≥ 27. Our conjecture had been that...
متن کاملThe Tits—kantor—koecher Construction for Jordan Dialgebras
We study a noncommutative generalization of Jordan algebras called Leibniz— Jordan algebras. These algebras satisfy the identities [x1x2]x3 = 0, (x 2 1 , x2, x3) = 2(x1, x2, x1x3), x1(x 2 1 x2) = x 2 1 (x1x2); they are related with Jordan algebras in the same way as Leibniz algebras are related to Lie algebras. We present an analogue of the Tits— Kantor—Koecher construction for Leibniz—Jordan a...
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We have developed a new method for transforming images with per-pixel displacements into textures that have correct parallax when texture-mapped, in the usual way, onto polygons. Our new method results from factoring the 3-D image-warping equations of McMillan and Bishop into a prewarp followed by standard texture mapping. The pre-warp handles only the parallax effects resulting from the direct...
متن کاملRami Kantor and David Katzenstein: Polymorphism in Non-B RT and Protease
HIV-1 non-subtype B viruses are predominant worldwide. At least 9 different HIV-1 group M subtypes and 14 circulating recombinant forms differ from one another by 10-15% in their pol gene, which includes the coding regions for the viral protease and reverse transcriptase (RT), the current targets of antiretroviral drugs. Inter-subtype genotypic diversity includes polymorphism at amino acid resi...
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ژورنال
عنوان ژورنال: Pratiques & travaux
سال: 2010
ISSN: 1923-0893,0827-0198
DOI: 10.7202/041475ar