Integral, Measure and Martingale
Every time I think I know what's going on, suddenly there's another layer of complications.
2017年2月10日星期五
Why is the largest element of symmetric, positive semidefinite matrix on the diagonal
http://math.stackexchange.com/questions/1382940/why-is-the-largest-element-of-symmetric-positive-semidefinite-matrix-on-the-dia/1382954
http://math.stackexchange.com/questions/1286813/largest-entry-in-symmetric-positive-definite-matrix
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