New lower bound of the determinant for Hadamard product on some totally nonnegative matrices |
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| Authors: | Yang Zhongpeng Feng Xiaoxia |
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| Institution: | 1. Department of Mathematics, Putian University, 351100, Putian, Fujian, P. R. China
2. Department of Mathematics, Beihua University, 132013, Jilin, P. R. China
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| Abstract: | Applying the properties of Hadamard core for totally nonnegative matrices, we give new lower bounds of the determinant for Hadamard product about matrices in Hadamard core and totally nonnegative matrices, the results improve Oppenheim inequality for tridiagonal oscillating matrices obtained by T. L. Markham. |
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