Results 11 to 20 of about 208 (207)
0-Hecke algebras of the symmetric groups: centers and modules associated to quasisymmetric Schur functions [PDF]
We consider two aspects of 0-Hecke algebras of symmetric groups: their centers and modules associated to quasisymmetric Schur functions. Tewari and van Willigenburg constructed 0-Hecke modules that are mapped to the skew quasisymmetric Schur functions by
König, Sebastian
core +2 more sources
K-theory for group C*-algebras [PDF]
These notes are based on a lecture course given by the first author in the Sedano Winter School on K-theory held in Sedano, Spain, on January 22-27th of 2007.
Baum, Paul, Sanchez-Garcia, Ruben
core +1 more source
Rota-Baxter operators on the polynomial algebras, integration and averaging operators [PDF]
The concept of a Rota–Baxter operator is an algebraic abstraction of integration. Following this classical connection, we study the relationship between Rota–Baxter operators and integrals in the case of the polynomial algebra k[x] k[x] .
Guo, Li +5 more
core +1 more source
Acylindrical hyperbolicity of groups acting on trees [PDF]
We provide new examples of acylindrically hyperbolic groups arising from actions on simplicial trees. In particular, we consider amalgamated products and HNN-extensions, 1-relator groups, automorphism groups of polynomial algebras, 3-manifold groups and ...
Osin, Denis +3 more
core +1 more source
Some combinatorial identities related to commuting varieties and Hilbert schemes [PDF]
In this article we explore some of the combinatorial consequences of recent results relating the isospectral commuting variety and the Hilbert scheme of points in the ...
Ginzburg, V. +3 more
core +1 more source
4d/2d Correspondence: Instantons and W-Algebras [PDF]
In this thesis, we study the 4d/2d correspondence of Alday-Gaiotto-Tachikawa, which relates the class of 4-dimensional N=2 gauge theories (theories of class S) to a 2-dimensional conformal field theory. The 4d gauge theories are obtained by compactifying
Song, Jaewon
core +1 more source
International Journal of Mathematical Combinatorics, Vol.3 [PDF]
The International J.Mathematical Combinatorics (ISSN 1937-1055) is a fully refereed international journal, sponsored by the MADIS of Chinese Academy of Sciences and published in USA quarterly comprising 460 pages approx.
Mao, Linfan (Editor-in-Chief)
core +1 more source
Weak polynomial identities and their applications [PDF]
summary:Let $R$ be an associative algebra over a field $K$ generated by a vector subspace $V$. The polynomial $f(x_1,\ldots ,x_n)$ of the free associative algebra $K\langle x_1,x_2,\ldots \rangle $ is a weak polynomial identity for the pair $(R,V)$ if it
Drensky, Vesselin
core +1 more source
Free probability and random matrices [PDF]
This volume opens the world of free probability to a wide variety of readers. From its roots in the theory of operator algebras, free probability has intertwined with non-crossing partitions, random matrices, applications in wireless communications ...
Speicher, Roland +3 more
core +3 more sources
Actions of the additive group $ {G}_a$ on certain noncommutative deformations of the plane [PDF]
summary:We connect the theorems of Rentschler \cite {rR68} and Dixmier \cite {jD68} on locally nilpotent derivations and automorphisms of the polynomial ring $A _0$ and of the Weyl algebra $A _1$, both over a field of characteristic zero, by establishing
Lopes, Samuel A. +2 more
core +1 more source

