Results 141 to 150 of about 136,518 (295)

Non-Commutative Abelian Higgs model [PDF]

open access: yesarXiv, 2004
We investigate the Non-Commutative Abelian Higgs model. We argue that it is possible to introduce a consistent renormalization method by imposing the Non-commutative BRST invariance of the theory and by introducing the Non-Commutative Quasi-Classical Action Principle.
arxiv  

Presentation of kernels of rational characters of right‐angled Artin groups

open access: yesBulletin of the London Mathematical Society, EarlyView.
Abstract In this note, we characterise when the kernel of a rational character of a right‐angled Artin group, also known as generalised Bestiva–Brady group, is finitely generated and finitely presented. In these cases, we exhibit a finite generating set and a presentation.
Montserrat Casals‐Ruiz   +2 more
wiley   +1 more source

Some commutation principles for optimization problems over transformation groups and semi-FTvN systems [PDF]

open access: yesarXiv
We introduce the concepts of commutativity relative to a transformation group and strong commutativity in the setting of a semi-FTvN system and show their appearance as optimality conditions in certain optimization problems. In the setting of a semi-FTvN system (in particular, in an FTvN system), we show that strong commutativity implies commutativity ...
arxiv  

Lying-Over Theorem on Left Commutative Rngs [PDF]

open access: yesarXiv, 2005
We introduce the notion of a graded integral element, prove the counterpart of the lying-over theorem on commutative algebra in the context of left commutative rngs, and use the Hu-Liu product to select a class of noncommutative rings.
arxiv  

n-complete crossed modules and wreath products of groups

open access: yesJournal of New Results in Science, 2021
In this paper we examine the $n$-completeness of a crossed module and we show that if $X=(W_1,W_2,\partial)$ is an $n$-complete crossed module, where $W_i=A_i wr B_i$ is the wreath product of groups $A_i$ and $B_i$, then $A_i$ is at most $n$-complete ...
B. Davvaz, M.a. Dehghani
doaj  

A finite‐dimensional counterexample for Arveson's hyperrigidity conjecture

open access: yesBulletin of the London Mathematical Society, EarlyView.
Abstract We construct an operator system generated by four operators that is not hyperrigid, although all restrictions of irreducible representations have the unique extension property.
Marcel Scherer
wiley   +1 more source

Non-Commutative Formal Groups In Positive Characterstic [PDF]

open access: yesarXiv, 2006
We describe geometric non-commutative formal groups in terms of a geometric commutative formal group with a Poisson structure on its splay algebra. We describe certain natural properties of such Poisson structures and show that any such Poisson structure gives rise to a non-commutative formal group.
arxiv  

Bloom-type two-weight inequalities for commutators of maximal functions

open access: yesAnalysis and Geometry in Metric Spaces
We study Bloom-type two-weight inequalities for commutators of the Hardy-Littlewood maximal function and sharp maximal function. Some necessary and sufficient conditions are given to characterize the two-weight inequalities for such commutators.
Zhang Pu, Fan Di
doaj   +1 more source

Periodic points of rational functions over finite fields

open access: yesTransactions of the London Mathematical Society, Volume 12, Issue 1, December 2025.
Abstract For q$q$ a prime power and ϕ$\phi$ a rational function with coefficients in Fq$\mathbb {F}_q$, let p(q,ϕ)$p(q,\phi)$ be the proportion of P1Fq$\mathbb {P}^1\left(\mathbb {F}_q\right)$ that is periodic with respect to ϕ$\phi$. Furthermore, if d$d$ is a positive integer, let Qd$Q_d$ be the set of prime powers coprime to d!$d!$ and let P(d,q ...
Derek Garton
wiley   +1 more source

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