Tian-Xiao He Copyright (c) 2009 All rights reserved. http://works.bepress.com/tian_xiao_he Recent documents in Tian-Xiao He en-us Sun, 31 May 2009 12:47:13 PDT 3600 A symbolic operator approach to several summation formulas for power series II http://works.bepress.com/tian_xiao_he/2 http://works.bepress.com/tian_xiao_he/2 Thu, 05 Feb 2009 06:28:58 PST Here expounded is a kind of symbolic operator method that can be used to construct many transformation formulas and summation formulas for various types of power series including some old ones and more new ones. Tian-Xiao He Riordan Arrays symbolic operator The Sheffer Group and the Riordan Group http://works.bepress.com/tian_xiao_he/1 http://works.bepress.com/tian_xiao_he/1 Tue, 19 Feb 2008 10:43:55 PST Tian-Xiao He