Research
Research
Cooperative Sheaf Neural Networks with André Ribeiro, Juan Belieni, Amauri H Souza, and Diego Mesquita The Fourteenth International Conference on Learning Representations (ICLR) 2026.
On sheaves on semicartesian quantales and their truth values with Caio Mendes and Hugo Luiz Mariano Journal of Logic and Computation (2024). [DOI] [preprint version]
The Category of Hypergroups: seeking for a generalized version of Abelian Categories with Kaique Matias de Roberto Latin American Journal of Mathematics (2023). [DOI]
On sheaf cohomology and natural expansions with Hugo Luiz Mariano São Paulo J. Math. Sci. (2021). [DOI] [preprint version]
Sheaves and C∞-Rings with Jean Cerqueira Berni and Hugo Luiz Mariano, Editora Pi, for the 35o CBM. (2025) ISBN 978-85-244-0582-2
2025
Seminário de Álgebra do IMPA - Sheaf Theory and Machine Learning: New Perspectives on Graph Neural Networks
2024
VII Latin American and Caribbean Mathematics Congress (Tematic Section Category Theory and Applications) - Grothendieck Loposes: A Categorification of Quantales
II Encontro USP-UFBA de Lógica e Fundamentos - Explorando teoria de feixes e uma versão monoidal de topos de Grothendieck
2023
Séminaire Itinérant de Catégories - Q-Sets and Sh(Q) for a non-cartesian topos
II Encontro Brasileiro em Teoria das Categorias - Sheaves on quantales and a generalization of Grothendieck toposes (Portuguese)
2021
Mes de la Mujer y la Niña en la Ciencia UIS - Lógica Matemática: De la teoría de conjuntos a las categorías (Portuguese-Spanish)
2025
XXI Brazilian Logic Conference - Sheaves on quantales and their truth values
2023
Category Theory Octoberfest - Sheaves on rings and Čech Cohomology (English)
2022
Applied Category Theory Conference - Fuzzy Type Theory (Sean O'Connor presented the results we obtained during the Adjoint School)
2021
1st Meeting Brazil-Colombia in Logic - Sheaf Categories on semicartesian monoidal categories: logical and cohomological aspects
Categories and Companions Symposium - Cohomology of Sheaves on Quantales (English)
Encontro Brasileiro em Teoria das Categorias - Cohomologia de Feixes em Quantales (Portuguese)
2020
3rd BYMAT Conference: Bringing Young Mathematicians Together - Cohomologies for Categories of Sheaves
Topics in Category Theory: A Spring School - Cohomology in a Topos (Winner of Best Poster Competition)
2019
Encontro Brasileiro de Mulheres Matemáticas - Cohomologia em Topos de Grothendieck.
2018
III Congresso Brasileiro de Jovens Pesquisadores em Matemática Pura, Aplicada e Estatística - Álgebra Homológica em Topos
2021
+1café: Categorias em Toda Parte (seminário introdutório sobre teoria das categorias)
2020
CAT: Generalizando a teoria da medida e integração usando feixes