https://www.kaiekubjas.com/post/krone-2021-uniqueness/
Uniqueness of nonnegative matrix factorizations by rigidity theory | Kaie Kubjas
Apr 7, 2021 - In the joint work with Robert Krone we study the uniqueness of nonnegative matrix factorizations using ideas from the rigidity theory. We give so far the...
nonnegative matrixrigidity theoryuniquenessfactorizationskaie
https://www.aimsciences.org/article/doi/10.3934/jmd.2019018
Mather theory and symplectic rigidity
Using methods from symplectic topology, we prove existence of invariant variational measures associated to the flow $ \phi_H $ of a Hamiltonian $ H\in...
mathertheorysymplecticrigidity