An elgenvalue and eigenfunction study of time-dependent fast-neutron spectra in 232Thnuclear physics and radiation physicsfast neutronseigenfunctionseigenvaluesthorium 232neutron spectrathorium 232 targetneutron reactionsgeometryneutron diffusion equation
I've been using the powermethod (since it does not require matrix inversion) for computing the largest eigenvalue but in some cases it is extremely slow probably due the ratio of eigenvalues lamda2/lamda1 being close to 1. Can anyone suggest a better...
A vectorizable elgenvalue solver for sparse matricesdoi:10.1016/S0010-4655(84)82897-0L.C.BernardandF.J.HeltonSDOSComputer Physics Communications
A general method is described which yields a lower bound for the first eigenvalue, for any second order elliptic equation for any bounded domain.nIn section 2the method in described for the membrane equation. The results are then applied in sections 3 and 4 to the case of the rhombus and ...