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SUMMARY:Base sizes of permutation groups - Joanna Fawcett (Imperial Colleg
 e London)
DTSTART:20200127T144500Z
DTEND:20200127T153500Z
UID:TALK137773@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:A base of a permutation group G acting on a set X is a subset 
 of X whose pointwise stabiliser in G is trivial. The base size of G is the
  minimal cardinality of a base for G. Bases have proved to be very useful\
 , both theoretically (in bounding the order of a primitive permutation gro
 up in terms of its degree) and computationally (in many algorithms for per
 mutation groups). Recently\, much progress has been made on understanding 
 the base sizes of primitive permutation groups. This talk will survey some
  of these results.
LOCATION:Seminar Room 1\, Newton Institute
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