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《Mathematics in Practice and Theory》 2008-21
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A Combinatorial Characteristic of CS-matrices

XU Guang-hui(Department of Applied mathematics,Zhejiang Forestry University,Hangzhou 311300,China)  
CS-matrices is an important class of matrix in signed matrix theory that is correlative with conditional sign-solvable linear systems.In this paper,CS-matrices and some special classes of CS-matrices such as BCS-matrices and maximal CS-matrices are further studied.Some combinatorial characteristics of them are given by introducing the concepts of ″majorized row″ and ″majorized matrix″.
【Fund】: 国家自然科学基金项目资助(10671074)
【CateGory Index】: O151.21
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