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pro vyhledávání: '"Mahdi Karder"'
Autor:
Tatjana Petek, Mahdi Karder
Publikováno v:
Linear Algebra and its Applications. 532:86-98
Let S ( H ) be the set of all linear positive-semidefinite self-adjoint Trace-one operators (states) on H where H is an at least two-dimensional finite-dimensional real or complex Hilbert space or at least three-dimensional left quaternionic Hilbert
Publikováno v:
Integral Equations and Operator Theory. 82:51-60
We determine all bijective unitary similarity preserving linear maps on B(H), the algebra of all bounded linear operators on a separable infinite-dimensional Hilbert space H.
Autor:
Ali Taghavi, Mahdi Karder
Publikováno v:
Mediterranean Journal of Mathematics. 11:829-840
Let \({\mathbb{D}}\) be an arbitrary division ring and \({{\rm M_{n}}(\mathbb{D})}\) be the set of all n × n matrices over \({\mathbb{D}}\). We define the rank subtractivity or minus partial order on \({{\rm M_{n}}(\mathbb{D})}\) as defined on \({{\