OP-00151 Partially resolved Construct a separating diagonal perturbation in nearly linear time NA · deterministic algorithms · eigenvalue gaps · OpenProblemsInNLA · tridiagonal matrices
OP-00223 Solution claimed Sharp growth for cyclic tridiagonal matrices NA · Gaussian elimination · growth factors · OpenProblemsInNLA · tridiagonal matrices
OP-00264 Partially resolved Exact determinant ranges of general tridiagonal interval matrices NA · determinants · interval matrices · OpenProblemsInNLA · tridiagonal matrices
OP-00265 Partially resolved Exact solution hulls for tridiagonal interval systems NA · interval matrices · linear systems · OpenProblemsInNLA · tridiagonal matrices