Results 11 to 20 of about 68 (27)
The transformation of irreducible tensor operators under spherical functions
, 2010 The irreducible tensor operators and their tensor products employing Racah algebra are studied. Transformation procedure of the coordinate system operators act on are introduced.
A.K. Bhatia +13 more
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Linear maps preserving separability of pure states
, 2013 Linear maps preserving pure states of a quantum system of any dimension are characterized. This is then used to establish a structure theorem for linear maps that preserve separable pure states in multipartite systems.
Hou, Jinchuan, Qi, Xiaofei
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Operators with extension property and the principle of local reflexivity [PDF]
, 1996 Given an arbitrary $p$-Banach ideal $(0 < p \leq 1)$, we ask for geometrical properties of this ideal which are sufficient (and necessary) to allow a transfer of the principle of local reflexivity to this operator ...
Oertel, Frank
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Generation of Mapping Cones from Small Sets
, 2012 We answer in the affirmative a recently-posed question that asked if there exists an "untypical" convex mapping cone -- i.e., one that does not arise from the transpose map and the cones of k-positive and k-superpositive maps.
Ando +36 more
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Open MathematicsWe consider the tensor products of square matrices of different sizes and introduce the stretching maps, which can be viewed as a generalized matricization.
Futorny Vyacheslav +2 more
doaj +1 more source
Applications of Hilbert Module Approach to Multivariable Operator Theory
, 2014 A commuting $n$-tuple $(T_1, \ldots, T_n)$ of bounded linear operators on a Hilbert space $\clh$ associate a Hilbert module $\mathcal{H}$ over $\mathbb{C}[z_1, \ldots, z_n]$ in the following sense: \[\mathbb{C}[z_1, \ldots, z_n] \times \mathcal{H ...
A. Arias +70 more
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, 2015 Power symmetric matrices defned and studied by R. Sinkhorn (1981) and their generalization by R.B. Bapat, S.K. Jain and K. Manjunatha Prasad (1999) have been utilized to give positive block matrices with trace one possessing positive partial transpose ...
Singh, Ajit Iqbal
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Composition operators on Hilbert spaces of entire functions with analytic symbols
, 2016 Composition operators with analytic symbols on some reproducing kernel Hilbert spaces of entire functions on a complex Hilbert space are studied. The questions of their boundedness, seminormality and positivity are investigated. It is proved that if such
Stochel, Jan, Stochel, Jerzy B.
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, 2023 Using the Wold-von Neumann decomposition for the isometric covariant representations due to Muhly and Solel, we prove an explicit representation of the commutant of a doubly commuting pure isometric representation of the product system over $\mathbb{N}_0^
Saini, Dimple +2 more
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Decomposition of Finite Schmidt Rank Bounded Operators on the Tensor Product of Separable Hilbert Spaces [PDF]
, 2016 Inverse formulas for the tensor product are used to develop an algorithm to compute Schmidt decompositions of Finite Schmidt Rank (FSR) bounded operators on the tensor product of separable Hilbert spaces.
Bourouihiya, Abdelkrim
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