In this paper, the class of K-0-matrices, which includes positive definite matrices, totally positive matrices, M-matrices and inverse M-matrices, is first introduced and the refinements of Fischer's inequality and Hadamard's inequality for K-0-matrices are obtained. Some previous well-known results for totally nonnegative matrices can be regarded as the special case of this paper.
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Henan Polytech Univ, Dept Appl Math & Informat, Res Inst Appl Math, Jiaozuo City 454000, Henan, Peoples R ChinaHenan Polytech Univ, Dept Appl Math & Informat, Res Inst Appl Math, Jiaozuo City 454000, Henan, Peoples R China
Qi, F
Wei, ZL
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机构:Henan Polytech Univ, Dept Appl Math & Informat, Res Inst Appl Math, Jiaozuo City 454000, Henan, Peoples R China
Wei, ZL
Yang, Q
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机构:Henan Polytech Univ, Dept Appl Math & Informat, Res Inst Appl Math, Jiaozuo City 454000, Henan, Peoples R China