4 citations · 4 across the 3 of their papers we have counts for
3 papers
math.LO2009
Failure on n-uniqueness: a family of examples
Elisabetta Pastori, Pablo Spiga
In this paper, the connections between model theory and the theory of infinite permutation groups are used to study the n-existence and the n-uniqueness for n-amalgamation problems…
math.GR2009★ 4 cited
Second cohomology groups and finite covers
David M. Evans, Elisabetta Pastori
For D an infinite set, k>1 and W the set of k-sets from D, there is a natural closed permutation group G_k which is a non-split extension of \mathbb{Z}_2^W by \Sym(D). We classify…
math.LO2007
Almost-free finite covers
Elisabetta Pastori
Finite covers are a technique for building new structures from simpler ones. The original motivation to study finite covers is in the Ladder theorem of Zilber which describes how t…