Let psi :circle times(d)(i=1) H-ni -> circle times(d)(i=1) H-ni be a linear map on the Kronecker product of spaces of Hermitian matrices H-ni of size n(i) >= 3. (If d= 1, we identify circle times(d)(i=1) H-ni with H-ni.) We establish a condition under which psi (adj (circle times(d )(i=1)A(i))) = adj (psi(circle times(d )(i=1)A(i))) if and only if det (psi(circle times(d )(i=1)A(i))) = det (circle times(d )(i=1)A(i)) for all circle times(d )(i=1)A(i) is an element of circle times(d)(i=1) H-ni. Then for d is an element of {1,2}, we apply this fact to characterize maps psi : circle times(d)(i=1) H-ni -> circle times(d)(i=1) H-ni such that psi (adj (circle times(d )(i=1)A(i))) = adj (psi(circle times(d )(i=1)A(i))) with some mild conditions.
机构:
Ovidius Univ Constanta, Fac Math & Informat, Mamaia Bvd 124, Constanta, RomaniaOvidius Univ Constanta, Fac Math & Informat, Mamaia Bvd 124, Constanta, Romania
机构:
Univ Primorska, Fac Management, SI-6104 Koper, SloveniaUniv Primorska, Fac Management, SI-6104 Koper, Slovenia
Fosner, Ajda
Huang, Zejun
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机构:
Hong Kong Polytech Univ, Dept Appl Math, Hong Kong, Hong Kong, Peoples R ChinaUniv Primorska, Fac Management, SI-6104 Koper, Slovenia
Huang, Zejun
Li, Chi-Kwong
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机构:
Coll William & Mary, Dept Math, Williamsburg, VA 23187 USA
Univ Hong Kong, Dept Math, Pokfulam, Hong Kong, Peoples R ChinaUniv Primorska, Fac Management, SI-6104 Koper, Slovenia
Li, Chi-Kwong
Sze, Nung-Sing
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机构:
Hong Kong Polytech Univ, Dept Appl Math, Hong Kong, Hong Kong, Peoples R ChinaUniv Primorska, Fac Management, SI-6104 Koper, Slovenia
机构:Mohammed- V University in Rabat,Department of Mathematics, Mathematical Research Center of Rabat, Laboratory of Mathematics, Statistics and Applications, Faculty of Sciences
Zine El Abidine Abdelali
Abdellatif Bourhim
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机构:Mohammed- V University in Rabat,Department of Mathematics, Mathematical Research Center of Rabat, Laboratory of Mathematics, Statistics and Applications, Faculty of Sciences
Abdellatif Bourhim
Acta Scientiarum Mathematicarum,
2018,
84
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: 49
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64