Article ID Journal Published Year Pages File Type
4599682 Linear Algebra and its Applications 2014 9 Pages PDF
Abstract
We prove two inequalities regarding the ratio det(A+D)/detA of the determinant of a positive-definite matrix A and the determinant of its perturbation A+D. In the first problem, we study the perturbations that happen when positive matrices are added to diagonal blocks of the original matrix. In the second problem, the perturbations are added to the inverses of the matrices.
Keywords
Related Topics
Physical Sciences and Engineering Mathematics Algebra and Number Theory
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