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A Note on Ultrametric Matrices

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Abstract

It is proved in this paper that special generalized ultrametric and special matrices are, in a sense, extremal matrices in the boundary of the set of generalized ultrametric and matrices, respectively. Moreover, we present a new class of inverse M-matrices which generalizes the class of matrices.

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  1. Department of Mathematics, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, P.R. China, 200030

    Xiao-Dong Zhang

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  1. Xiao-Dong Zhang
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Correspondence to Xiao-Dong Zhang.

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Zhang, XD. A Note on Ultrametric Matrices. Czech Math J 54, 929–940 (2004). https://doi.org/10.1007/s10587-004-6441-5

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  • DOI: https://doi.org/10.1007/s10587-004-6441-5

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