AbstractIn this paper we describe the form of those continuous multiplicative maps on B(H) (H being a separable complex Hilbert space of dimension not less than 3) which preserve the rank, or the corank. Furthermore, we characterize those continuous presup∗-semigroup endomorphisms of B(H) which are spectrum non-increasing
Abstract: Let H be an infinite-dimensional separable complex Hilbert space and B(H) the algebra of a...
AbstractLet B(X) be the algebra of bounded operators on a complex infinite dimensional Banach space ...
AbstractLet Mn be the semigroup of n×n complex matrices under the usual multiplication, and let S be...
AbstractIn this paper we describe the form of those continuous multiplicative maps on B(H) (H being ...
AbstractLet X (H) be a Banach space (Hilbert space) and let B(X) (B(H)) be the algebra of all bounde...
AbstractWe characterize linear rank-k nonincreasing, rank-k preserving, and corank-k preserving maps...
AbstractAs a continuation of the work of linear maps between operator algebras which preserve certai...
AbstractWe characterize multiplicative maps φ on semigroups of square matrices satisfying φ(P)⊆P for...
AbstractIn this note we describe the form of all those transformations (no linearity is assumed) of ...
Let A*B be a product on matrices such as the usual matrix product A*B = AB, the entrywise product A*...
Let H be a separable complex Hilbert space and B(H ) the algebra of all bounded linear operators on ...
AbstractLet V be an n-dimensional Hilbert space. Suppose H is a subgroup of the symmetric group of d...
AbstractLet T be a surjective map from a unital semi-simple commutative Banach algebra A onto a unit...
Let $B(H)$ be the algebra of all bounded linear operators on an infinite-dimensional complex Hilbert...
Let M n be the semigroup of n × n complex matrices under the usual multiplication, and let S be diff...
Abstract: Let H be an infinite-dimensional separable complex Hilbert space and B(H) the algebra of a...
AbstractLet B(X) be the algebra of bounded operators on a complex infinite dimensional Banach space ...
AbstractLet Mn be the semigroup of n×n complex matrices under the usual multiplication, and let S be...
AbstractIn this paper we describe the form of those continuous multiplicative maps on B(H) (H being ...
AbstractLet X (H) be a Banach space (Hilbert space) and let B(X) (B(H)) be the algebra of all bounde...
AbstractWe characterize linear rank-k nonincreasing, rank-k preserving, and corank-k preserving maps...
AbstractAs a continuation of the work of linear maps between operator algebras which preserve certai...
AbstractWe characterize multiplicative maps φ on semigroups of square matrices satisfying φ(P)⊆P for...
AbstractIn this note we describe the form of all those transformations (no linearity is assumed) of ...
Let A*B be a product on matrices such as the usual matrix product A*B = AB, the entrywise product A*...
Let H be a separable complex Hilbert space and B(H ) the algebra of all bounded linear operators on ...
AbstractLet V be an n-dimensional Hilbert space. Suppose H is a subgroup of the symmetric group of d...
AbstractLet T be a surjective map from a unital semi-simple commutative Banach algebra A onto a unit...
Let $B(H)$ be the algebra of all bounded linear operators on an infinite-dimensional complex Hilbert...
Let M n be the semigroup of n × n complex matrices under the usual multiplication, and let S be diff...
Abstract: Let H be an infinite-dimensional separable complex Hilbert space and B(H) the algebra of a...
AbstractLet B(X) be the algebra of bounded operators on a complex infinite dimensional Banach space ...
AbstractLet Mn be the semigroup of n×n complex matrices under the usual multiplication, and let S be...
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