
School of Mathematics and Statistics
Professor Jorge Almeida University of Porto, Portugal
The KrohnRhodes complexity problem
Friday 31st July, 121pm, Carslaw 273.
The group complexity of a finite semigroup is the
least number of group factors in a wreath product
of finite groups and aperiodic semigroups which it
divides. The talk will present recent advances on
the problem as to whether such a parameter can be
effectively computed.
