Results 31 to 40 of about 1,043,180 (331)

The cohomology of the symmetric groups [PDF]

open access: yesTransactions of the American Mathematical Society, 1978
Let S n {{\mathcal {S}}_n} be the symmetric group on n letters and SG the limit of the sets of degree +1 homotopy equivalences of the n − 1 n - 1 sphere. Let p be an odd prime.
openaire   +1 more source

Word Measures on Symmetric Groups

open access: yesInternational Mathematics Research Notices, 2022
AbstractFix a word $ w $ in a free group $ \textbf {F}$ on $r$ generators. A $w$-random permutation in the symmetric group $S_{N}$ is obtained by sampling $r$ independent uniformly random permutations $ \sigma _{1},\ldots ,\sigma _{r}\in S_{N}$ and evaluating $w\left (\sigma _{1},\ldots ,\sigma _{r}\right )$.
Hanany, Liam, Puder, Doron
openaire   +3 more sources

On the separation of eigenvalues by the permutation group

open access: yesSpecial Matrices, 2014
Let A be an invertible 3 × 3 complex matrix. It is shown that there is a 3 × 3 permutation matrix P such that the product PA has at least two distinct eigenvalues.
Cigler Grega, Jerman Marjan
doaj   +1 more source

On symmetric units in group algebras

open access: yes, 2000
Let $U(KG)$ be the group of units of the group ring $KG$ of the group $G$ over a commutative ring $K$. The anti-automorphism $g\mapsto g\m1$ of $G$ can be extended linearly to an anti-automorphism $a\mapsto a^*$ of $KG$. Let $S_*(KG)=\{x\in U(KG) \mid x^*
Bovdi, Victor
core   +1 more source

Branching rules in the ring of superclass functions of unipotent upper-triangular matrices [PDF]

open access: yes, 2008
It is becoming increasingly clear that the supercharacter theory of the finite group of unipotent upper-triangular matrices has a rich combinatorial structure built on set-partitions that is analogous to the partition combinatorics of the classical ...
Thiem, Nathaniel
core   +5 more sources

On double cosets with the trivial intersection property and Kazhdan-Lusztig cells in S n [PDF]

open access: yesInternational Journal of Group Theory, 2015
For a composition λ of n our aim is to obtain reduced forms ‎for all the elements in the Kazhdan-Lusztig (right) cell containing ‎w J(λ) ‎, ‎the longest element of the standard parabolic‎ ‎subgroup of S n corresponding to λ ‎.
Thomas P. McDonough   +1 more
doaj  

Symmetric differentials and the fundamental group

open access: yes, 2013
Esnault asked whether every smooth complex projective variety with infinite fundamental group has a nonzero symmetric differential (a section of a symmetric power of the cotangent bundle).
Brunebarbe, Yohan   +2 more
core   +1 more source

The Sylow subgroups of the symmetric groups [PDF]

open access: yesProceedings of the American Mathematical Society, 1955
particular representation by means of "reduced polynomials."' It has seemed worth while to restate some of his results using the concept of complete product L o M of two permutation groups L, M which he and Krasner have recently emphasised.2 This elementary notion is of great importance in the theory of finite groups and it appears in the literature in
openaire   +1 more source

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