Dirichlet L-series with real and complex characters and their application to solving double sums
arXiv:0708.1224 · doi:10.1098/rspa.2007.0162
Abstract
A description of the properties of Łwith complex characters is given. By using these, together with the more familiar Łwith real characters, it is shown how certain two dimensional lattice sums, which previously could not be put into closed form, may now be expressed in this way.
21 pages, 1 table