Pedro is interested in the study of reduction by symmetries of certain geometric structures, such as Poisson structures and Courant algebroids, by means of the homological methods used in field theory (BFV-BRST formalism). During his stay in Zurich, which was from September 5, 2022, to February 27, 2023, he mainly looked for a concrete homological model for the Bursztyn-Cavalcanti-Gualtieri Courant reduction.