MIT Combinatorics Seminar On applications of WZ Akalu Tefera  (Grand Valley State University, visiting MIT) Friday, April 27, 2007    4:15 pm    Room 2-136 ABSTRACT One of the most exciting discoveries in the early nineties, due to Herbert Wilf and Doron Zeilberger, was finding closed-form expressions for various sums and integrals, and finding proofs for special classes of summation/integration identities can be efficiently and elegantly handled by the computer. In this talk we explore and highlight the Wilf-Zeilberger (WZ) method and show various applications of the method in combinatorics.