进步 发表于 2025-3-30 11:11:20
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http://reply.papertrans.cn/87/8654/865309/865309_52.pngevasive 发表于 2025-3-30 20:07:35
Completion of Special Types of MatricesHere we consider completions to Green matrices under some conditions on the specified band. If all the submatrices .. of the form (8.1) are invertible, then the unique completion to a Green matrix is a positive (definite) matrix if and only if all the matrices .. of the form (9.1) are positive (definite).出来 发表于 2025-3-30 22:36:27
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http://reply.papertrans.cn/87/8654/865309/865309_55.pngSpongy-Bone 发表于 2025-3-31 07:55:24
http://reply.papertrans.cn/87/8654/865309/865309_56.pngVsd168 发表于 2025-3-31 09:44:18
Inversion of Matrices in Diagonal Plus Semiseparable FormHere we study in detail the inversion methods for matrices with diagonal plus semiseparable representations. For scalar matrices we obtain an inversion algorithm without any restrictions.