KANSAI ALGEBRAIC TOPOLOGY SEMINAR, Japan, September 2024
Seminario Virtual de Topologia Algebraica, Cimat, Mexico, November 2021
Workshop: Topological Complexity and Motion Planning, Banff International Research Station for Mathematical Innovation and Discovery, September 2020
Special Session on Topological Complexity and Related Topics, AMS Special Session on Topological Complexity and Related Topics, Florida, November 2019
Categorical Approaches to Topology and Geometry, Canadian Mathematical Society, June 2019
Plenary speaker, International Conference on Algebra and Related Topics ICART, Rabat, Morocco, July 2018
Topological Seminar, Braga, Portugal, May 2018
Organizer, Wright College Topological Robotics Symposium, Chicago, February 2018
Topological complexity, Oberwolfach, Germany, March 2016
Topological Robotics, Lisbon, Portugal, February 2015
Computational Topology, Montevideo, Uruguay, December 2014
Applied Topology, Bedlewo, Poland, July 2013
Pure Mathematics Seminar, Leicester, UK, March 2012
Transpennine Topology Triangle, Nottingham, UK, March 2012
New Insights in Lusternik-Schnirelmann Category, Santiago de Compostela, Spain, February 2012
Workshop on Algebraic Topology and Combinatorics, Buenos Aires, Argentina, November 2011
Mellon Workshop on Global Riemannian Geometry, Middlebury, October 2009
AMS on Geometry and Topology of Orbifolds, San Francisco, April 2009
V Seminario de Categorías y Aplicaciones, Pontevedra, Spain, Septiembre 2008
Max Kelly Conference, Cape Town, South Africa, January 2008
Abel Symposium, Oslo, Norway, August 2007
Postnikov Memorial Conference, Bedlewo, Poland, June 2007
Algebra Seminar, Universidade de Santiago de Compostela, Spain, June 2007
IV Seminar on Categories and Applications, Barcelona, Spain, June 2007
Homology Theories, K-Theory and Homotopy Theory, Tbilisi, Georgia, May 2007
University of Chicago Algebraic Topology Seminar, January 2007/November 2009
Fields Institute, Toronto, Canada, January 2007
Groups in Geometry and Topology, ICM2006 satellite, Málaga, Spain, September 2006
UAB Topology Seminar, Universitat Autònoma de Barcelona, Spain, July-August 2006
XVth Oporto Meeting on Geometry, Topology and Physics ICM2006 satellite, Portugal, June 2006
British Mathematical Colloquium, University of Newcastle, Newcastle, UK, April 2006
Stringy Topology in Morelia, Morelia, Mexico, January 2006
Colloquium, Harold Washington College, Chicago, 2005
International Conference on Pure and Applied Topology, Isle of Skye, Scotland, 2005
Colloquium, University of Sheffield, Sheffield, UK, 2005
International Conference on Foliations, Ryukoku University, Kyoto, Japan, 2003
AMS Conference: Riemannian foliations, Sevilla, 2003
AMS Lusternik-Schnirelmann category in the new millennium, Mount Holyoke, 2001
Foliations, Stefan Banach International Mathematical Center, Warsaw, 2000