clopen.solutions

Open problems

980 registered problems.

OP-00094 Lean verified
Degree coverage with seven matrix multiplications
NA · matrix multiplication · matrix polynomials · OpenProblemsInNLA
OP-00160 Open
Optimal sign approximation with a multiplication budget
NA · matrix polynomials · matrix sign function · OpenProblemsInNLA · polynomial approximation
OP-00229 Solution claimed
Spectral-gap-independent constants for randomized block polynomial interpolation
NA · block Lanczos methods · matrix polynomials · OpenProblemsInNLA · random matrices
OP-00234 Solution claimed
Complete Crouzeix conjecture
FA · matrix polynomials · numerical ranges · OpenProblemsInNLA · spectral sets
OP-00235 Solution claimed
A dimension-independent polynomial norm bound from super-identical pseudospectra
NA · matrix polynomials · OpenProblemsInNLA · pseudospectra · singular values