C. Riener

activity

20102026

most citedExploiting symmetries in SDP-relaxations for polynomial optimization

82 citations · 169 across the 34 of their papers we have counts for

collaborators

Showing 2026Show all

3 papers · 1 filter

math.CO2026

Diagonal Specht ideals and their varieties

Anna Escofet, Cordian Riener, Hugues Verdure

We study the diagonal Specht ideals $I_{λ} \subseteq R_{m, n} := C [x_{1}, \dots, x_{m}]$ , $x_{r} = (x_{r, 1}, \dots, x_{r, n})$ , generated by the $λ$ -isoty…

math.RA2026

Eigenvalues of locally positive semidefinite matrices: Non-convexity and Geometry

Jose Acevedo, Grigoriy Blekherman, Sebastian Debus +2

A real symmetric matrix is called $d$ -locally positive semidefinite if all of its $d \times d$ principal submatrices are positive semidefinite. We investigate the spectral geometry…

math.AC2026

Symmetric and Isotypic Hilbert Series for Symmetric Ideals

Henri Breloer, Cordian Riener

An ideal in a polynomial ring is symmetric if it is invariant under any permutation of variables. In this paper, we define and study the symmetric and isotypic Hilbert series for s…