Michael Albert, Vít Jelínek
Published 2016-05-04Version 1
A permutation class is splittable if it is contained in the merge of two of its proper subclasses. We characterise the unsplittable subclasses of the class of separable permutations both structurally and in terms of their bases.
Splittability and 1-amalgamability of permutation classes
On the growth of permutation classes
An Erdős--Hajnal analogue for permutation classes
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