How to best compute the matrix inverse (NEGF)
Asked by
Greg von Winckel
99% of the time, there is no reason to compute the matrix inverse, however, the Nonequilibrium Green's Function method is the 1% of the time where you have to. The problem to solve is
(E-H)G(
where E is a spectral parameter and H is the Hamiltonian. With nodal Galerkin methods, obtaining the approximation to G(x,x')
requires computing the inverse of E-H. What would be the best way to do this with FEniCS?
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