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Necessary and Sufficient Conditions for Generalized Positice Definiteness of Matrix

Ji Yudong Dongying Education College,Dongying,Shandong,257091  
Necessary and sufficient conditions for genoralized positice definiteness of matrix are obtained under second order matrix and upper (or lower)triangular matrix.The relationship between P I,P D and P S is indicated,where P I is a set of meta positive definite matrices,and P D is a set of generalized positive definite matrices,P S is a set of generalized positive definite matrices.
【CateGory Index】: O151.21
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