Dedicated to Professor Andy Majda on the occasion of his 60th birthday POLE-BASED APPROXIMATION OF THE FERMI-DIRAC FUNCTION
نویسنده
چکیده
Two approaches for the efficient rational approximation of the Fermi-Dirac function are discussed: one uses the contour integral representation and conformal mapping and the other is based on a version of the multipole representation of the Fermi-Dirac function that uses only simple poles. Both representations have logarithmic computational complexity. They are of great interest for electronic structure calculations.
منابع مشابه
Approximating the maximum consecutive subsums of a sequence
Dedicated to Professor Gad M. Landau, on the occasion of his 60th birthday
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