Results 11 to 20 of about 208 (207)

Rota-Baxter operators on the polynomial algebras, integration and averaging operators [PDF]

open access: yes, 2014
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

Some combinatorial identities related to commuting varieties and Hilbert schemes [PDF]

open access: yes, 2011
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]

open access: yes, 2012
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

0-Hecke algebras of the symmetric groups: centers and modules associated to quasisymmetric Schur functions

open access: yes, 2021
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   +1 more source

International Journal of Mathematical Combinatorics, Vol.3 [PDF]

open access: yes, 2009
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]

open access: yes, 2021
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

Actions of the additive group $ {G}_a$ on certain noncommutative deformations of the plane [PDF]

open access: yes, 2021
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

K-theory for group C*-algebras

open access: yes, 2011
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

Acylindrical hyperbolicity of groups acting on trees

open access: yes, 2015
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

Who Knows Best What the Next Year Will Hold for You? The Validity of Direct and Personality‐based Predictions of Future Life Experiences Across Different Perceivers

open access: yesEuropean Journal of Personality, EarlyView., 2020
Abstract This study explored the validity of person judgements by targets and their acquaintances (‘informants’) in longitudinally predicting a broad range of psychologically meaningful life experiences. Judgements were gathered from four sources (targets, N = 189; and three types of informants, N = 1352), and their relative predictive validity was ...
Nele M. Wessels   +3 more
wiley   +1 more source

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