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Results tagged with numerical-linear-algebra
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user 5963
{numerical-linear-algebra} questions involving algorithms for linear algebra computations.
4
votes
Alternative to Choleski Decomposition for Correlation Matrix
For the purposes of this answer I will ignore the condition of constant column sums. You ask for a matrix $A$ with $A^TA = \Sigma$ and $A\geq 0$ element wise. Such a matrix need not exist. For exam …
- 8,501
7
votes
polynomials with minimal $L_\infty$ norm on multiple disjoint intervals
This problem can be reformulated exactly as an SOS (sum of squares) program and then solved to any degree of accuracy efficiently as an SDP (semidefinite program). For lots of references I'd recommen …
- 8,501