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12 votes
0 answers
277 views

How many steps on $S_n$ are required to span $V\wedge V$, $V = K^n$?

Let $A$ be a set of generators of $G=S_n$; assume $e\in A$, $A=A^{-1}$. Let $V = K^n$, $K$ a field. Consider the natural action of $G$ on $V$ (namely, $g(e_i) = e_{g(i)}$) and on $W = V\wedge V$ (...
H A Helfgott's user avatar
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9 votes
2 answers
814 views

Regular elementary abelian subgroups of primitive permutation groups

A finite group $B$ is said to be a B-group if every primitive permutation group having a regular (transitive) subgroup isomorphic to B is $2$-transitive. Schur proved that a cyclic group of ...
Mark Wildon's user avatar
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