116 citations · 258 across the 22 of their papers we have counts for
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math.AC2009★ 1 cited
Pure states, nonnegative polynomials and sums of squares
Sabine Burgdorf, Claus Scheiderer, Markus Schweighofer
In recent years, much work has been devoted to a systematic study of polynomial identities certifying strict or non-strict positivity of a polynomial on a basic closed semialgebrai…
math.OC2009
Exposed faces of semidefinitely representable sets
Tim Netzer, Daniel Plaumann, Markus Schweighofer
A linear matrix inequality (LMI) is a condition stating that a symmetric matrix whose entries are affine linear combinations of variables is positive semidefinite. Motivated by the…