Path: utzoo!utgpu!watmath!maytag!watdcsu!swartz
From: swartz@watdcsu.waterloo.edu ( SWARTZ SJ    - COMBINATORICS Swartz OPT.   )
Newsgroups: uw.talks
Subject: C&O Seminar  Dr. A. Pott of Wright State University, Dayton, Ohio
Keywords: Divisible Difference Sets
Message-ID: <6281@watdcsu.waterloo.edu>
Date: 5 Sep 89 13:14:46 GMT
Distribution: uw
Organization: U of Waterloo, Ontario
Lines: 65



                          C & O  SEMINAR

	=================================================
        |                                                |
        |DATE:     Friday, September 8, 1989             |
       	|					         | 
	|TIME:     3:30 p.m.                             |
        |                                                |
        |PLACE:    DC 1302                               |
        |                                                |
        |SPEAKER:  Dr. A. Pott                           |
        |          Wright State University, Dayton, Ohio |
        |                                                |
        |TITLE:    Divisible Difference Sets             |
        |================================================|

                             ABSTRACT

           It  is  well  known  that (v,k,t) difference sets
      correspond  to  symmetric  (v,k,t)-designs admitting a
      sharply  transitive automorphism group and vice versa.
      An  analogous  statement is true for divisible differ-
      ence  sets and group divisible designs, as well as for
      strongly  regular  graphs and partial difference sets.
      In  my talk I will present new results about divisible
      difference  sets and some relations to partial differ-
      ence sets.



































                        September 5, 1989