Weekly Calendar

Summer Semester, 2001

Monday	Tuesday	Wednesday	Thursday	Friday

245 Altgeld Hall, 1:00 p.m.

Group Theory Seminar

Lawrence Reeves, Oxford University, UK

Not all free-by-cyclic groups are automatic

Abstract:In his problem list [Problems on automatic groups, 1992], Gersten asked whether for all finitely generated free groups $F$, a semidirect product $F\rtimes\Z$ is necessarily automatic. They are known to be asynchronously automatic. We demonstrate a class of groups which admit no automatic structure, and observe that some of these groups are free-by-cyclic.

A variety of seminars series will be held during Summer 2001.
Click for detailed information about dates, times and speakers in these seminar series.

Algebraic Geometry Summer Seminar, 2001; 2 p.m., Tuesdays and Thursdays, 143 Altgeld Hall
Combinatorics and Number Theory, Summer Seminar; 2 p.m., Thursdays, 241 Altgeld Hall
Commutative Ring Theory RAP; 3 p.m., Tuesdays and Thursdays, 341 Altgeld Hall
Graduate Advanced Student Summer Seminar in Stochastic Processes (GASP); 2 p.m., Tuesdays, 241 Altgeld Hall
Graduate Student Summer Seminar - Math 402; 10 a.m., Thursdays
illiMath2001, Summer REU
REU Number Theory Seminar; 2 p.m., Tuesdays, 145 Altgeld Hall
REU Number Theory Short Courses; 159 Altgeld Hall

Items for inclusion in the Weekly Calendar should be submitted via e-mail to Hilda Britt. Deadline for inclusion in the Weekly Calendar is 5 p.m. Thursdays. Speakers are encouraged to provide abstracts.