Date: Fri, Nov 17, 2017
Time: 10:10 - 11:10
Venue: Middle Meeting Room
Title: Permutation groups and transformation semigroups (III)
A semigroup is regular if every element has a von Neumann inverse. Those permutation groups having the property that the semigroup generated by the group together with any non-permutation of the domain is regular, have been classified. Currently this is being extended by restricting the non-permutation to have given rank, or to have a given image.
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