User Britta - Mathematics Stack Exchange

Britta

Member for 2 years, 5 months
Last seen more than a month ago

Netherlands

5 Answers

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How can i rewrite my specific $F_{n,2d}^a$ polynomial to be a sum of $(3n-4)$ squares?

discrete-mathematics polynomials sums-of-squares semidefinite-programming

answered Jun 14, 2020 at 15:32

1 vote

How to prove Fekete / Markov-Lukasz theorem: nonnegative univariate polynomial on [-1,1] can be decomposed accoording to even/odd-ness of degree

polynomials optimization semidefinite-programming sum-of-squares-method

answered May 30, 2020 at 18:36

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Why is the smallest dimension for which there exists an orthogonal representation bounded by the coloring of the complement?

graph-theory coloring semidefinite-programming

answered Mar 29, 2020 at 10:43

3 votes

Proof of uniqueness of LU factorization

linear-algebra matrices matrix-decomposition gaussian-elimination lu-decomposition

answered Jan 4, 2020 at 14:21

1 vote

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M-matrix implies positive diagonal elements?

linear-algebra

answered Dec 9, 2019 at 14:43