Results 11 to 20 of about 268 (44)

Jucys-Murphy elements and Weingarten matrices [PDF]

open access: yes, 2010
We provide a compact proof of the recent formula of Collins and Matsumoto for the Weingarten matrix of the orthogonal group using Jucys-Murphy elements.Comment: v2: added a ...
Zinn-Justin, P.
core   +1 more source

Impartial avoidance and achievement games for generating symmetric and alternating groups [PDF]

open access: yes, 2016
We study two impartial games introduced by Anderson and Harary. Both games are played by two players who alternately select previously-unselected elements of a finite group.
Benesh, Bret J.   +2 more
core   +3 more sources

Bi-quartic parametric polynomial minimal surfaces

open access: yes, 2015
Minimal surfaces with isothermal parameters admitting B\'{e}zier representation were studied by Cosin and Monterde. They showed that, up to an affine transformation, the Enneper surface is the only bi-cubic isothermal minimal surface.
Kassabov, Ognian, Vlachkova, Krassimira
core   +1 more source

Shifted convolution and the Titchmarsh divisor problem over F_q[t] [PDF]

open access: yes, 2015
In this paper we solve a function field analogue of classical problems in analytic number theory, concerning the auto-correlations of divisor functions, in the limit of a large finite field.Comment: 22 pages, updated ...
Bary-Soroker L   +6 more
core   +2 more sources

1-Colored Archetypal Permutations and Strings of Degree n [PDF]

open access: yesMemoirs of the Scientific Sections of the Romanian Academy, 2012
New notions related to permutations are introduced here. We present the string of a 1-colored permutation as a closed planar curve, the fundamental 1-colored permutation as an equivalence class related to the equivalence in strings of the 1-colored ...
Gheorghe Eduard Tara
doaj  

Enumeration of bigrassmannian permutations below a permutation in Bruhat order

open access: yes, 2010
In theory of Coxeter groups, bigrassmannian elements are well known as elements which have precisely one left descent and precisely one right descent.
A Björner   +5 more
core   +1 more source

Improved covering results for conjugacy classes of symmetric groups via hypercontractivity

open access: yesForum of Mathematics, Sigma
We study covering numbers of subsets of the symmetric group $S_n$ that exhibit closure under conjugation, known as normal sets. We show that for any $\epsilon>0$ , there exists $n_0$ such that if $n>n_0$ and A is a normal ...
Nathan Keller   +2 more
doaj   +1 more source

Multiplicative Bases for the Centres of the Group Algebra and Iwahori-Hecke Algebra of the Symmetric Group

open access: yes, 2012
Let $\H_n$ be the Iwahori-Hecke algebra of the symmetric group $S_n$, and let $Z(\H_n)$ denote its centre. Let $B={b_1,b_2,...,b_t}$ be a basis for $Z(\H_n)$ over $R=\Z[q,q^{-1}]$. Then $B$ is called \emph{multiplicative} if, for every $i$ and $j$, there
Francis, Andrew, Jones, Lenny
core   +1 more source

Symmetric groups and conjugacy classes [PDF]

open access: yes, 2007
Let S_n be the symmetric group on n-letters. Fix n>5. Given any nontrivial $\alpha,\beta\in S_n$, we prove that the product $\alpha^{S_n}\beta^{S_n}$ of the conjugacy classes $\alpha^{S_n}$ and $\beta^{S_n}$ is never a conjugacy class.
Adan-Bante E.   +4 more
core   +3 more sources

Group-theoretic Approach for Symbolic Tensor Manipulation: II. Dummy Indices

open access: yes, 2001
Computational Group Theory is applied to indexed objects (tensors, spinors, and so on) with dummy indices. There are two groups to consider: one describes the intrinsic symmetries of the object and the other describes the interchange of names of dummy ...
B. F. SVAITER   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy