Results 101 to 110 of about 11,887 (225)

Operator Theory on Symmetrized Bidisc [PDF]

, 2014
A commuting pair of operators (S, P) on a Hilbert space H is said to be a Gamma-contraction if the symmetrized bidisc is a spectral set of the tuple (S, P).
Sarkar, Jaydeb
core  

Induced representations and harmonic analysis on finite groups

, 2013
Given a finite group $G$ and a subgroup $K$, we study the commutant of $\text{Ind}_K^G\theta$, where $\theta$ is an irreducible $K$-representation. After a careful analysis of Frobenius reciprocity, we are able to introduce an orthogonal basis in such ...
Scarabotti, Fabio, Tolli, Filippo
core  

Efficient Unitary Designs with a System-Size Independent Number of Non-Clifford Gates. [PDF]

Commun Math Phys, 2023
Haferkamp J, Montealegre-Mora F, Heinrich M, Eisert J, Gross D, Roth I.   +5 more
europepmc   +1 more source

Holographic observers for time-band algebras

Journal of High Energy Physics
We study the algebra of observables in a time band on the boundary of anti-de Sitter space in a theory of quantum gravity. Strictly speaking this algebra does not have a commutant because products of operators within the time band give rise to operators ...
Kristan Jensen, Suvrat Raju, Antony J. Speranza   +2 more
doaj   +1 more source

Surgical outcomes and stoma-related complications in inflammatory bowel disease in Saudi Arabia: a retrospective study. [PDF]

Ann Saudi Med, 2023
Bin Traiki TA, Alshammari SA, Abdulla MA, Aldarsouni FG, Alhassan NS, Abdullah MH, Alqahtani A, Alkhayal KA.   +7 more
europepmc   +1 more source

Schrödinger's Cat Meets Occam's Razor. [PDF]

Entropy (Basel), 2022
Gill RD.
europepmc   +1 more source

Operators commuting with complex symmetric weighted composition operators on H 2

Concrete Operators
In this article, we initially study when an anti-linear Toeplitz operator is in the commutant of a composition operator. Primarily, we investigate weighted composition operators Wg,ψ{W}_{g,\psi } commuting with complex symmetric weighted composition ...
Bhuia Sudip Ranjan
doaj   +1 more source

Inverse Commutator Subgroups

Proceedings of the National Academy of Sciences, 1931
Summary:
openaire   +4 more sources

Isometric Dilations of Representations of Product Systems via Commutants

, 2006
We construct a weak dilation of a not necessarily unital CP-semigroup to an E-semigroup acting on the adjointable operators of a Hilbert module with a unit vector.
Michael Skeide, Via Commutants
core   +1 more source

On commuting and semi-commuting positive operators [PDF]

Proceedings of the American Mathematical Society, 2014
Let K K be a positive compact operator on a Banach lattice. We prove that if either [ K ⟩ [K\rangle or ⟨ K ] \langle K] is ideal irreducible, then [ K ⟩ = ⟨ K ] = L +
openaire   +2 more sources