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The study of the properties of real and complex matrices that are more close to analysis and operator theory. For instance: the properties of positive definite matrices, matrix inequalities, perturbation analysis, matrix functions, inequalities between eigenvectors and singular values, majorization.

8 votes

The derivative of the Cholesky factor

I've written a relevant note on arXiv: http://arxiv.org/abs/1602.07527 I included the neat closed form solution pete gives in a comment, and also a messy expression (converted to the notation f = cho …
Iain Murray's user avatar