Permutation groups, partition lattices and block structures
M Anagnostopoulou-Merkouri, RA Bailey… - arXiv preprint arXiv …, 2024 - arxiv.org
Let $ G $ be a transitive permutation group on $\Omega $. The $ G $-invariant partitions
form a sublattice of the lattice of all partitions of $\Omega $, having the further property that …
form a sublattice of the lattice of all partitions of $\Omega $, having the further property that …