THIS LECTURE HAS BEEN POSTPONED TILL MAY 30 TECHNION DEPARTMENT OF MATHEMATICS ALGEBRA SEMINAR SPEAKER: Arye Juhasz, Technion TOPIC: On the isoperimetric functions of one-relator groups DATE: POSTPONED TILL MAY 30. Abstract : It has been conjectured by several researchers that the possible isoperimetric functions of one relator groups are: linear, quadratic, exponential and the third Ackermann function. In a work in progress I plan to check this conjecture, using a generalized version of small cancellation theory. The problem is divided into 6 subproblems, the first of which already has been resolved. In the talk I will present this result. --------------------------------------------------------- Technion Math. Net (TECHMATH) Editor: Michael Cwikel <techm@math.technion.ac.il> Announcement from: Shlomo Gelaki <gelaki@math.technion.ac.il>