4 papers
Cooperative Sheaf Neural Networks
André Ribeiro, Ana Luiza Tenório, Juan Belieni +2
Sheaf diffusion has recently emerged as a promising design pattern for graph representation learning due to its inherent ability to handle heterophilic data and avoid oversmoothing…
The Category of Hypergroups: seeking for a generalized version of Abelian Categories
Kaique Matias de Andrade Roberto, Ana Luiza Tenório
In this paper we study categorical properties of the category of abelian hypergroups that leads to the notion of hyper (almost) preadditive and hyper (almost) abelian categories. O…
Expanding Äech cohomology for quantales
Ana Luiza Tenório, Peter Arndt, Hugo Luiz Mariano
We expand Äech cohomology of a topological space with values in a presheaf on to Äech cohomology of a commutative ring with unity with values in a presheaf on . Th…
Grothendieck prelopologies: towards a closed monoidal sheaf category
Ana Luiza Tenório, Hugo Luiz Mariano
In this paper, we present a generalization of Grothendieck pretopologies -- suited for semicartesian categories with equalizers -- leading to a closed monoidal category of shea…