Generalized Green’s functions for mth-order discrete nonlocal problems∗
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DOI: 10.1007/s10986-017-9346-3
Abstract: In this paper, we consider mth-order linear discrete problems with m nonlocal conditions. We investigate a generalized Green’s function, describing the minimum norm least squares solution, and present its properties, which resemble properties of an… read more here.
Keywords: functions mth; generalized green; order discrete; green functions ... See more keywords
Numerically exact generalized Green's function cluster expansions for electron-phonon problems
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DOI: 10.1103/physrevb.104.035106
Abstract: We generalize the family of approximate momentum average methods to formulate a numerically exact, convergent hierarchy of equations whose solution provides an efficient algorithm to compute the Green’s function of a particle dressed by bosons… read more here.
Keywords: numerically exact; function cluster; generalized green; green function ... See more keywords