American Institute of Mathematics 2024 (Pasadena California)
Albertson conjecture and related problems workshop at American Institute of Mathematics 2024 (Pasadena, California)
CLA 2024 (Santiago, Chile)
CLA2024 - Algebraic Combinatorics session (Santiago, Chile). From left: Camilo Gonzalez, Michelle Wachs, Lei Xue, Manuel Concha, Andrés Vindas, Jean-Philippe Labbe, José Samper and Carlos
CVNL 2024 (Oaxaca, Mexico)
CVNL 2024 (Oaxaca, México). From left: Rafael Villarroel, Criel Merino and Carlos
ILAS 2023 (Madrid, Spain)
Speakers and organizers of the minisymposia "Advances in cospectrality" in ILAS 2023 (Madrid, Spain. From left: Joel Jeffries, Krystal Guo, Chris Godsil, Carlos, Carolyn Reinhart and Kate Lorenzen)
Combinatorics and Optimization 2023 (Providence, Rhode Island)
Jesús de Loera and Carlos at ICERM 2023 (Providence, Rhode Island)
Bonn2022
Hausdorff School on Computational Combinatorial Optimization 2022 (Bonn, Germany)
24th Conference of the International Linear Algebra Society 2022 (Galway, Ireland)
Richard Brualdi listening my talk at 24th Conference of the International Linear Algebra Society 2022 (Galway, Ireland)
Ralihe Ph.D. exam 2021
Ralihe Ph.D. defense 2021
Berlin2019
Einstein Workshop on Polytopes and Algebraic Geometry 2019 (Berlin, Germany)
Sandpiles2015
Scaling Limits of Dynamical Processes on Random Graphs 2019 (Casa Matemática Oaxaca)
GRWC 2018
GRWC 2018 (Ames, Iowa)
MRC 2017
Latin American Workshop on Cliques in Graphs 2018 (Rio de Janeiro, Brazil)
MRC 2017
MRC 2017 (Beyond Planarity: Crossing Numbers in Snowbird, Utah)
MRC 2017
MRC 2017 (Snowbird, Utah. From left: Mario Lomelí, Carlos and Silvia Fernández-Merchant)
Juriquilla
Third Discrete Mathematics Workshop 2016 (Juriquilla, Queretaro)
Juriquilla
Latin American Workshop on Cliques in Graphs 2016 (La Plata, Argentina)
Sandpiles2015
Sandpile groups 2015 (Casa Matemática Oaxaca)
Sandpiles2015
Latin and American Algorithms, Graphs and Optimization Symposium 2015 (Ceará, Brazil)
CrossingNumbers2013
Crossing numbers 2013 (Guanajuato)
Google
At Google 2012 (Mountain View, California. From left: Marcos Vargas, Sergio Perez, Carlos)
APPLE
At infinite loop 2012 (Cupertino, California)
Monterey
At Monterey, California 2012 (From left: Carlos Valencia and Carlos Alfaro)
HP
Teotihuacan, Mexico 2011 (From left: Carlos, Carlos Valencia and Bob Tarjan)
HP
HP Labs 2011 (Palo Alto, California. From left: Ricardo, Carlos, Bob Tarjan, Lile Ramshaw, Marcos Vargas and Pano Santos)
HP
View from David Eisenbud's home 2009 (Berkeley, California. From left: Rafael Villarreal and Carlos Alfaro)