hermitian_semidefinite(n) 函数是一个假设中的函数，它的功能是判断一个n×n 的Hermitian 矩阵是否为半正定矩阵。Hermitian 矩阵是一种特殊的复数矩阵，它的转置矩阵等于其共轭矩阵。换句话说，如果一个矩阵A 的所有元素都满足 （其中 ），则称A 为Hermitian 矩阵。半正定矩阵是一种特殊类型的矩阵，其所有特征值都...
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Hermitian positive semidefinite matrices whose entries are 0 or 1 in modulus. Linear and Multilinear Algebra, 46(4):259-264, 1999.D. Hershkowitz, M. Neumann, H. Schneider, Hermitian positive semidefinite matrices whose entries are 0 or 1 in modulus, Linear and Multilinear Algebra 46 (1999) ...
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2) positive definite Hermitian transformation 正定埃尔米特变换3) Hermite transformation 埃尔米特变换 1. By means of Hermite transformation,the Wick-type stochastic generalized Kdv-MKdv equation was reduced to stochastic coefficient equation,then some stochastic exact solutions were obtainable via the ...
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Frommer, A., Szyld, D.B.: On necessary conditions for convergence of stationary iterative methods for hermitian definite and semidefinite linear systems. Linear Algebra Appl. 453, 192-201 (2014)Frommer, A., Szyld, D.B.: On necessary conditions for convergence of stationary iterative methods ...
A new algorithm to approximate Hermitian matrices by positive semidefinite matrices based on modified Cholesky decompositions is presented. The approximation error and the condition number of the approximation can be controlled by parameters of the algorithm. The algorithm tries to minimize the ...
Frommer, A., Szyld, D.B.: On necessary conditions for convergence of stationary iterative methods for hermitian definite and semidefinite linear systems. Linear Algebra Appl. 453, 192-201 (2014)Frommer, A., Szyld, D.B.: On necessary conditions for convergence of stationary iterative methods ...
Benzi, p-regular splitting iterative methods for non-Hermitian positive definite linear systems, ETNA: Electron. Trans. Numer. Anal. 36 (2009-2010) 39-53.Zhen Chao , Naimin Zhang , Pan Shen, Convergence of P-regular splitting iterative methods for non-Hermitian positive semidefinite linear ...