R. Hildebrand

activity

20052022

most citedPPT from spectra

60 citations · 138 across the 20 of their papers we have counts for

collaborators

Showing 2014Show all

2 papers · 1 filter

math.OC2014

Spectrahedral cones generated by rank 1 matrices

Roland Hildebrand

Let $S_{+}^{n} \subset S^{n}$ be the cone of positive semi-definite matrices as a subset of the vector space of real symmetric $n \times n$ matrices. The intersection of ${…

math.OC2014

Minimal zeros of copositive matrices

Roland Hildebrand

Let $A$ be an element of the copositive cone $C_{n}$ . A zero $u$ of $A$ is a nonzero nonnegative vector such that $u^{T} A u = 0$ . The support of $u$ is the index set $\mbox{supp}…