3 papers
math.AG2026
Nonlinear methods for tensors: determinantal equations for secant varieties beyond cactus
Matěj Doležálek, Mateusz Michałek
We present a family of flattening methods of tensors which we call Kronecker-Koszul flattenings, generalizing the famous Koszul flattenings and further equations of secant varietie…
math.ST2024
On the maximum likelihood degree for Gaussian graphical models
Carlos Améndola, Rodica Andreea Dinu, Mateusz Michałek +1
In this paper we revisit the likelihood geometry of Gaussian graphical models. We give a detailed proof that the ML-degree behaves monotonically on induced subgraphs. Furthermore,…
cond-mat.mes-hall2024
Topological classification of driven-dissipative nonlinear systems
Greta Villa, Javier del Pino, Vincent Dumont +4
In topology, one averages over local geometrical details to reveal robust global features. This approach proves crucial for understanding quantized bulk transport and exotic bounda…