**************** The 15th., Lab Seminar ***************** Date: Thu, November 27, 2003 PM 4:00- Place: No.616 Seminar room        Graduate School of Information Science Speaker: Yoshiyuki Koyano Title: Treatment of long-range interactions: the Ewald Sum Abstract: The Ewald sum is the best technique for calculating long-range interactions in a periodic system. I will introduce derivation of the Ewald Sum formula for a system of charged point ions mutually interacting via the Coulomb potential. *********************************************************************