On improvements of Fischer’s inequality and Hadamard’s inequality for K 0 -matrices
LI Yan-xi · Journal of Inequalities and Applications · 2013
In this paper, the class of -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 -matrices are obtained. Some previous well-known results for totally nonnegative matrices can be regarded as the special case of this paper. MSC:15A15.