Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Fadil Chabbabi"'
Publikováno v:
Linear Algebra and its Applications. 588:364-390
In this paper we consider three operations on positive definite cones of C ⁎ -algebras which are related to weighted geometric means and appear in the formulas defining various versions of quantum Renyi relative entropy. We show how Jordan *-isomor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::424a910049a6c90e02413d87e22d296d
https://doi.org/10.1016/j.laa.2019.11.024
https://doi.org/10.1016/j.laa.2019.11.024
Autor:
Mostafa Mbekhta, Fadil Chabbabi
Publikováno v:
Linear and Multilinear Algebra and Function Spaces. :89-107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b1c8856d7372d4213dbbc9b6801e2d2
https://doi.org/10.1090/conm/750/15105
https://doi.org/10.1090/conm/750/15105
Autor:
Fadil Chabbabi, Mostafa Mbekhta
Publikováno v:
Linear and Multilinear Algebra. 67:2382-2398
In this paper, we give a complete form of bijective (not necessarily linear) maps Φ:B(H)→B(K) where H,K are Hilbert spaces with dimH≥2 that satisfy Δλ(Φ(A)⋆Φ(B))=Φ(Δλ(A⋆B)) for all A,B∈B(H), where...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a699d8620d7fd5832eb7161b5f7a9c9a
https://doi.org/10.1080/03081087.2018.1492514
https://doi.org/10.1080/03081087.2018.1492514
Autor:
Fadil Chabbabi, Mostafa Mbekhta
Publikováno v:
Journal of Mathematical Analysis and Applications. 450:293-313
Let B ( H ) be the algebra of all bounded linear operators acting on a Hilbert space H . The main purpose in this paper is to obtain a characterization of bijective maps Φ : B ( H ) → B ( K ) , K Hilbert space, satisfying the following condition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96d9a3962e5b4bf54868637f3cb7fb7f
https://doi.org/10.1016/j.jmaa.2017.01.036
https://doi.org/10.1016/j.jmaa.2017.01.036
Autor:
Fadil Chabbabi
Publikováno v:
Journal of Mathematical Analysis and Applications. 449:589-600
Let H and K be two Hilbert spaces and B(H) be the algebra of all bounded linear operators from H into itself. The main purpose of this paper is to obtain a characterization of bijective maps Φ : B(H) → B(K) satisfying the following condition ∆
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf41b762170b00cbb66c07fcf4dd0e28
https://doi.org/10.1016/j.jmaa.2016.12.027
https://doi.org/10.1016/j.jmaa.2016.12.027
Autor:
Fadil Chabbabi, Mostafa Mbekhta
Publikováno v:
Linear Algebra and its Applications. 515:246-254
In this paper we give several expressions of spectral radius of a bounded operator on a Hilbert space, in terms of iterated λ -Aluthge transform, numerical radius and the asymptotic behavior of the powers of this operator. We also obtain several cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d58d623a12b8fd724ce3f678001cf10a
https://doi.org/10.1016/j.laa.2016.11.022
https://doi.org/10.1016/j.laa.2016.11.022
Autor:
Mostafa Mbekhta, Fadil Chabbabi
Publikováno v:
Mediterranean Journal of Mathematics. 14
Let H be a complex Hilbert space and \(\mathcal {B}(H)\) be the algebra of bounded linear operators on H. For \(n \ge 2\) and \(T_1, T_2,\ldots ,T_n \in \mathcal {B}(H)\), the operators are defined as follows: \(T_1 T_2 \ldots T_n\) the usual product
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c39bbf32f3f381c894f25c2d541dbeb0
https://doi.org/10.1007/s00009-017-0860-7
https://doi.org/10.1007/s00009-017-0860-7