Computational Algebra Seminar: Elsenhans -- Computing Symmetric Normalisers

Speaker: Stephan Elsenhans (Magma, Sydney)
Title: Computing Symmetric Normalisers
Time & Place: 15:00 - 16:00, Thursday 17 October 2024, SMRI Seminar Room
Abstract:
The computation of the normaliser of a permutation group in the full
symmetric group is an important and hard problem in computational
group theory. In this talk, I will report on an algorithm that builds
a descending chain of overgroups to determine the normaliser. The
performance is compared with other implementations. We end with an
inspection of several interesting examples.