Results 81 to 90 of about 9,623 (179)
The algebra of parallel endomorphisms of a germ of pseudo-Riemannian metric
, 2015 On a (pseudo-)Riemannian manifold (M,g), some fields of endomorphisms i.e. sections of End(TM) may be parallel for g. They form an associative algebra A, which is also the commutant of the holonomy group of g.
Boubel, Charles
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The Vertex Algebra M(1)+ and Certain Affine Vertex Algebras of Level −1
Symmetry, Integrability and Geometry: Methods and Applications, 2012 We give a coset realization of the vertex operatoralgebra $M(1)^+$ with central charge $ell$. We realize $M(1) ^+$as a commutant of certain affine vertex algebras of level $-1$ inthe vertex algebra $L_{C_{ell} ^{(1)}}(-frac{1}{2}Lambda_0)otimes L_{C_ ...
Ozren Perše, Dražen Adamović
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Symmetries as Ground States of Local Superoperators: Hydrodynamic Implications
PRX QuantumSymmetry algebras of quantum many-body systems with locality can be understood using commutant algebras, which are defined as algebras of operators that commute with a given set of local operators.
Sanjay Moudgalya, Olexei I. Motrunich
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, 2005 The category of von Neumann correspondences from B to C (or von Neumann B-C-modules) is dual to the category of von Neumann correspondences from C' to B' via a functor that generalizes naturally the functor that sends a von Neumann algebra to its ...
Skeide, M.
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International Journal of Mathematics and Mathematical Sciences, 2012 Let R(𝔻) be the algebra generated in Sobolev space W22(𝔻) by the rational functions with poles outside the unit disk 𝔻¯. In this paper, we study the similarity invariant of the multiplication operators Mg in ℒ(R(𝔻)), when g is univalent analytic on 𝔻 or ...
Ruifang Zhao
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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
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
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Efficient Unitary Designs with a System-Size Independent Number of Non-Clifford Gates. [PDF]
Commun Math Phys, 2023 Haferkamp J +5 more
europepmc +1 more source
Holographic observers for time-band algebras
Journal of High Energy PhysicsWe 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 +2 more
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Surgical outcomes and stoma-related complications in inflammatory bowel disease in Saudi Arabia: a retrospective study. [PDF]
Ann Saudi Med, 2023 Bin Traiki TA +7 more
europepmc +1 more source