Majorization conjecture for products of positive semidefinite matrices
Majorization conjecture for products of positive semidefinite matrices
Let and be positive semidefinite matrices. Let denote the vector of eigenvalues of a Hermitian matrix , arranged in decreasing order, and let denote majorization. Majorization conjecture.
If true, this would imply the corresponding determinant inequality for all positive and would extend the known cases discussed immediately beforehand. The source reports numerical evidence but leaves the majorization statement as a question.
Sources & referencesView supporting material
Primary source
Minghua Lin, “On a determinantal inequality arising from diffusion tensor imaging”, arXiv:1604.04141 (2016).
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