International Projects (coordination):
- Programa Institucional de Internacionalização Capes-PrInt (Edital no. 41/2017)
collaboration with France-Germany universities;
- Computational Methods for Comparative Genomics:
supported by CAPES, in collaboration with Bielefeld University, Germany;
- MATH-Amsud-Discrete mathematics: graph partition problems ,
supported by CAPES, CNRS and CONICYT,
in collaboration with Brazil-France-Argentina universities.
Member of the Scientific Committee of the Latin and American Algorithms, Graphs and Optimization Symposium (LAGOS) in 2019, 2025.
Chair of the Tenth Annual RECOMB Satellite Workshop on Comparative Genomics (RECOMB-CG 2012).
Leader of the Antena Brasileira de Matemática : the brazilian representation of the worldwide "Maths à Modeler" antenna network.
Leader of the CNPq Brazilian Research Group Directory Combinatorics and Discrete Mathematics at UFF.
Visitor at the GSCOP, Université Grenoble Alpes, CNRS, in 2002, 2004, 2009 and 2011.
Visitor at the Laboratory for Innovation in Bioinformatics, University of Ottawa in 2008 and 2014.
Tribute in honor of my 50th birthday in 2021 during MDA Workshop.