2 papers
math.NA2022
Tighter Bound Estimation for Efficient Biquadratic Optimization Over Unit Spheres
Shigui Li, Linzhang Lu, Xing Qiu +2
Bi-quadratic programming over unit spheres is a fundamental problem in quantum mechanics introduced by pioneer work of Einstein, Schrödinger, and others. It has been shown to be NP…
math.NA2018
On the growth factor upper bound for Aasen's algorithm
Yuehua Feng, Linzhang Lu
Aasen's algorithm factorizes a symmetric indefinite matrix as , where is a permutation matrix, is unit lower triangular with its first column being the f…