AbstractWe describe linear maps from a C∗-algebra onto another one preserving different spectral quantities such as the minimum modulus, the surjectivity modulus, and the reduced minimum modulus
Suppose $\mathfrak{B}(H)$ is the Banach algebra of all bounded linear operators on a Hilbert space $...
AbstractLet X and Y be Banach spaces. We show that a spectrum preserving surjective linear map φ fro...
Let H be an infinite-dimensional separable complex Hilbert space and B(H) the algebra of all bounded...
AbstractWe describe linear maps from a C∗-algebra onto another one preserving different spectral qua...
Abstract. For a completely bounded linear maps between operator sp-aces, we introduce numbers which ...
Abstract. For a completely bounded linear maps between operator sp-aces, we introduce numbers which ...
AbstractLet B(H) be the algebra of all bounded linear operators on a complex infinite-dimensional Hi...
Let B(X) be the algebra of all bounded linear operators on an infinite dimensional complex Banach sp...
Abstract: Let H be an infinite-dimensional separable complex Hilbert space and B(H) the algebra of a...
AbstractSuppose M is an n × n (n ⩾ 2) matrix algebra over a C∗-algebra U, and B is a C∗-algebra. If ...
AbstractIn this note we consider linear maps on the complex n×n matrix algebra Mn preserving product...
A classical result of Apostol (MichiganMath. J. 32, 279–294, 1985) concerning the reduced minimum mo...
Let be an infinite-dimensional separable complex Hilbert space and () the algebra of all bounded l...
AbstractLet x0∈Cn be a nonzero vector. We prove that if a linear map φ:Mn(C)→Mn(C) preserves the loc...
AbstractWe determine all similarity preserving linear maps on the space of n x n complex matrices an...
Suppose $\mathfrak{B}(H)$ is the Banach algebra of all bounded linear operators on a Hilbert space $...
AbstractLet X and Y be Banach spaces. We show that a spectrum preserving surjective linear map φ fro...
Let H be an infinite-dimensional separable complex Hilbert space and B(H) the algebra of all bounded...
AbstractWe describe linear maps from a C∗-algebra onto another one preserving different spectral qua...
Abstract. For a completely bounded linear maps between operator sp-aces, we introduce numbers which ...
Abstract. For a completely bounded linear maps between operator sp-aces, we introduce numbers which ...
AbstractLet B(H) be the algebra of all bounded linear operators on a complex infinite-dimensional Hi...
Let B(X) be the algebra of all bounded linear operators on an infinite dimensional complex Banach sp...
Abstract: Let H be an infinite-dimensional separable complex Hilbert space and B(H) the algebra of a...
AbstractSuppose M is an n × n (n ⩾ 2) matrix algebra over a C∗-algebra U, and B is a C∗-algebra. If ...
AbstractIn this note we consider linear maps on the complex n×n matrix algebra Mn preserving product...
A classical result of Apostol (MichiganMath. J. 32, 279–294, 1985) concerning the reduced minimum mo...
Let be an infinite-dimensional separable complex Hilbert space and () the algebra of all bounded l...
AbstractLet x0∈Cn be a nonzero vector. We prove that if a linear map φ:Mn(C)→Mn(C) preserves the loc...
AbstractWe determine all similarity preserving linear maps on the space of n x n complex matrices an...
Suppose $\mathfrak{B}(H)$ is the Banach algebra of all bounded linear operators on a Hilbert space $...
AbstractLet X and Y be Banach spaces. We show that a spectrum preserving surjective linear map φ fro...
Let H be an infinite-dimensional separable complex Hilbert space and B(H) the algebra of all bounded...
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