%0 Journal Article %T Fermi-Dirac integrals in terms of Zeta Functions %A Michael Morales %J Mathematics %D 2009 %I arXiv %X This paper shows the Fermi-Dirac Integrals expressed in terms of Riemann and Hurwitz Zeta functions. This is done by defining an auxiliar function that permits rewrite the Fermi-Dirac integral in terms of simpler and known integrals resulting in the Zeta functions mentioned. The approach used here evades the use of iterative methods for the integrals and presents a generalization in a refereed interval, one that complements Sommerfeld lemma. %U http://arxiv.org/abs/0909.3653v5