On vanishing criteria that control finite group structure
نویسندگان
چکیده
منابع مشابه
Which elements of a finite group are non-vanishing?
Let $G$ be a finite group. An element $gin G$ is called non-vanishing, if for every irreducible complex character $chi$ of $G$, $chi(g)neq 0$. The bi-Cayley graph ${rm BCay}(G,T)$ of $G$ with respect to a subset $Tsubseteq G$, is an undirected graph with vertex set $Gtimes{1,2}$ and edge set ${{(x,1),(tx,2)}mid xin G, tin T}$. Let ${rm nv}(G)$ be the set of all non-vanishi...
متن کاملwhich elements of a finite group are non-vanishing?
let $g$ be a finite group. an element $gin g$ is called non-vanishing, if for every irreducible complex character $chi$ of $g$, $chi(g)neq 0$. the bi-cayley graph $bcay(g,t)$ of $g$ with respect to a subset $tsubseteq g$, is an undirected graph with vertex set $gtimes{1,2}$ and edge set ${{(x,1),(tx,2)}mid xin g, tin t}$. let $nv(g)$ be the set of all non-vanishing element...
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For any complex reductive connected Lie group G, many of the structure constants of the ordinary cohomology ring H(G/B;Z) vanish in the Schubert basis, and the rest are strictly positive. We present a combinatorial game, the “root game”, which provides some criteria for determining which of the Schubert intersection numbers vanish. The definition of the root game is manifestly invariant under a...
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ژورنال
عنوان ژورنال: Journal of Algebra
سال: 2016
ISSN: 0021-8693
DOI: 10.1016/j.jalgebra.2016.03.030