81 citations · 174 across the 12 of their papers we have counts for
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math.RT2019
Representability of permutation representations on coalgebras and the isomorphism problem
Cristina Costoya, David Méndez, Antonio Viruel
Let be a group and let be a permutation representation of on a set . We prove that there is a faithful -coalgebra such that $G…
math.AT2019★ 11 cited
Realisability problem in arrow categories
Cristina Costoya, David Méndez, Antonio Viruel
In this paper we raise the realisability problem in arrow categories. Namely, for a fixed category and for arbitrary groups , is there an object $…