Title: Efficient methods for computing integrals in electronic structure calculations,
Abstract: Efficient methods are proposed, for computing integrals appeaing in
electronic structure calculations. The methods consist of two parts: the first
part is to represent the integrals as contour integrals and the second one is
to evaluate the contour integrals by the Clenshaw-Curtis quadrature. The
efficiency of the proposed methods is demonstrated through numerical
experiments.