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math.LO2022
Semi-equational theories
Artem Chernikov, Alex Mennen
We introduce and study semi-equational and weakly semi-equational theories, generalizing equationality in stable theories (in the sense of Srour) to the NIP context. In particular,…
math.LO2022★ 1 cited
Definable convolution and idempotent Keisler measures II
Artem Chernikov, Kyle Gannon
We study convolution semigroups of invariant/finitely satisfiable Keisler measures in NIP groups. We show that the ideal (Ellis) subgroups are always trivial and describe minimal l…