8 citations · 8 across the 2 of their papers we have counts for
3 papers
math.MG2026
Generalized Perfect Matrices
Alexander Oertel, Achill Schürmann
We generalize Voronoi's theory of perfect quadratic forms to generalized copositive matrices over a full-dimensional closed convex cone K, by introducing a K-copositive minimum and…
math.NT2025
On Computing the Copositive Minimum and its Representatives
Alexander Oertel, Achill Schürmann
Computing the copositive minimum of a strictly copositive quadratic form is a natural generalization of computing the arithmetical minimum of a positive definite one. In this paper…
math.OC2017★ 8 cited
Rational factorizations of completely positive matrices
Mathieu Dutour Sikirić, Achill Schürmann, Frank Vallentin
In this note it is proved that every rational matrix which lies in the interior of the cone of completely positive matrices also has a rational cp-factorization.