OP-00113 Lean verified Connectedness of minimal positive semidefinite factorization orbits NA · matrix factorizations · OpenProblemsInNLA · positive semidefinite rank
OP-00202 Open Polynomial-time minimum-volume decision under sufficient scattering NA · minimum-volume factorizations · nonnegative matrix factorizations · OpenProblemsInNLA · promise problems
OP-00260 Solution claimed Complexity of globally optimal nonnegative rank-two approximation NA · low-rank approximations · nonnegative matrix factorizations · OpenProblemsInNLA