Results 21 to 30 of about 11,887 (225)
Composition operators with a minimal commutant
Advances in Mathematics, 2018 Miguel Lacruz +2 more
exaly +2 more sources
On Popa’s factorial commutant embedding problem [PDF]
Proceedings of the American Mathematical Society, 2020 An open question of Sorin Popa asks whether or not every $R^{\mathcal{U}}$-embeddable factor admits an embedding into $R^{\mathcal{U}}$ with factorial relative commutant.
Isaac Goldbring
semanticscholar +1 more source
Semi-commutations and Partial commutations [PDF]
RAIRO - Theoretical Informatics and Applications, 2000 Summary: The aim of this paper is to show that a semi-commutation function can be expressed as the compound of a sequential transformation, a partial commutation function, and the reverse transformation. Moreover, we give a necessary and sufficient condition for the image of a regular language to be computed by the compound of two sequential functions ...
Clerbout, M., Roos, Y., Ryl, Isabelle
openaire +2 more sources
On the classification of binary shifts of minimal commutant index [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 1999 Price GL.
exaly +2 more sources
Quantum scrambling of observable algebras [PDF]
Quantum, 2022 In this paper we describe an algebraic/geometrical approach to quantum scrambling. Generalized quantum subsystems are described by an hermitian-closed unital subalgebra $\cal A$ of operators evolving through a unitary channel.
Paolo Zanardi
doaj +1 more source
Fréchet differential of a power series in Banach algebras [PDF]
Opuscula Mathematica, 2010 We present two new forms in which the Fréchet differential of a power series in a unitary Banach algebra can be expressed in terms of absolutely convergent series involving the commutant \(C(T) : A \mapsto [A,T]\).
Benedetto Silvestri
doaj +1 more source
Commutativity and ideals in category crossed products; pp. 338–346 [PDF]
Proceedings of the Estonian Academy of Sciences, 2010 In order to simultaneously generalize matrix rings and group graded crossed products, we introduce category crossed products. For such algebras we describe the centre and the commutant of the coefficient ring.
Johan Öinert, Patrik Lundström
doaj +1 more source
Bulletin of the Australian Mathematical Society, 1984 We give examples of finite groups of odd prime power order in which the commutators lying in the centre do not generate the intersection of the centre and the commutator subgroup.
Caranti A, SCOPPOLA, CARLO MARIA
openaire +4 more sources
Monodromy of subrepresentations and irreducibility of low degree automorphic Galois representations
Journal of the London Mathematical Society, Volume 108, Issue 6, Page 2436-2490, December 2023., 2023 Abstract Let X$X$ be a smooth, separated, geometrically connected scheme defined over a number field K$K$ and {ρλ:π1(X)→GLn(Eλ)}λ$\lbrace \rho _\lambda :\pi _1(X)\rightarrow \mathrm{GL}_n(E_\lambda )\rbrace _\lambda$ a system of semisimple λ$\lambda$‐adic representations of the étale fundamental group of X$X$ such that for each closed point x$x$ of X$X$
Chun Yin Hui
wiley +1 more source
Centralizers of the infinite symmetric group [PDF]
Discrete Mathematics & Theoretical Computer Science, 2014 We review and introduce several approaches to the study of centralizer algebras of the infinite symmetric group $S_{\infty}$. Our work is led by the double commutant relationship between finite symmetric groups and partition algebras; in the case of $S_{\
Zajj Daugherty, Peter Herbrich
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