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math.GR2020
Finite totally -closed groups
Dmitry Churikov, Cheryl E. Praeger
For a positive integer , a group is said to be totally -closed if in each of its faithful permutation representations, say on a set , is the largest subgroup of $\…
math.GR2020
On -closed abelian permutation groups
Dmitry Churikov, Ilia Ponomarenko
A permutation group is said to be -closed if no group such that has the same orbits on as . A simple…