OP-00085 Lean verified Where a symmetric stochastic matrix can be spectrally unique NA · doubly stochastic matrices · inverse eigenvalue problems · OpenProblemsInNLA
OP-00143 Open The Lih–Wang permanent inequality toward the flat matrix FA · doubly stochastic matrices · OpenProblemsInNLA · permanents
OP-00148 Open Two permutation matrices generate the doubly stochastic spectral boundary NA · doubly stochastic matrices · inverse eigenvalue problems · OpenProblemsInNLA · permutation matrices