2 papers
math.LO2020
Relative internality and definable fibrations
Rémi Jaoui, Léo Jimenez, Anand Pillay
We first elaborate on the theory of relative internality in stable theories, focusing on the notion of uniform relative internality (called collapse of the groupoid in an earlier w…
math.RT2018
Set-partition tableaux and representations of diagram algebras
Tom Halverson, Theodore N. Jacobson
The partition algebra is an associative algebra with a basis of set-partition diagrams and multiplication given by diagram concatenation. It contains as subalgebras a large class o…