C. Costoya

activity

20112026

most citedRealisability problem in arrow categories

11 citations · 37 across the 17 of their papers we have counts for

collaborators

Showing 2019Show all

2 papers · 1 filter

math.RT2019

Representability of permutation representations on coalgebras and the isomorphism problem

Cristina Costoya, David Méndez, Antonio Viruel

Let $G$ be a group and let $ρ : G \to Sym (V)$ be a permutation representation of $G$ on a set $V$ . We prove that there is a faithful $G$ -coalgebra $C$ 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 $C$ and for arbitrary groups $H \leq G_{1} \times G_{2}$ , is there an object $…