Conferences and talks: 2006 - 2015

2006

• "A combinatorial analog of a theorem of F. Dyson", General Contributed Paper Session, Joint Mathematics Meetings, San Antonio, January 12-15, 2006.
• "When not to prove Jiang-type results", topology seminar, Katholieke Universiteit Leuven, Kortrijk, Belgium, February 21, 2006.
• Geometric methods in group theory and topology, Special Session, AMS regional meeting, Durham, New Hampshire, April 22-23, 2006.
• Fixed Point Theory and Related Topics, informal seminars, Bates College, April 25-26, 2006.
• XV Encontro Brasileiro de Topologia, UNESP Rio Claro, São Paulo, Brazil, July 10-14, 2006.
• "A geometric property for the generalized Baumslag-Solitar groups", topology seminar, IME Univ. of São Paulo, São Paulo, Brazil, July 19, 2006.
• "Fixed point theory for nilmanifolds", colloquium, Nicholaus Copernicus University, Torun, Poland, October 17, 2006.
• "On a fixed point theorem of H. Duan", topology seminar, IME Univ. of São Paulo, São Paulo, Brazil, October 20, 2006.
• "The Three B's in Fixed Point Theory", colloquium, Siena College, Albany NY, November 9, 2006.
• "Combinatorial Fixed Point Theorems", colloquium, UNESP - São José do Rio Preto, Brazil, November 22, 2006.

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2007

• Fixed Point Theory, Dynamics, and Group Theory, Special Session, AMS Annual Meeting, New Orleans, Louisiana, January 5-8, 2007.
• "On the preimages of an equivariant map", topology seminar, IME Univ. of São Paulo, São Paulo, Brazil, April 17, 2007.
• "Twisted conjugacy classes of generalized Baumslag-Solitar groups", Topological Theory of Fixed and Periodic Points, Mathematical Research and Conference Center, Bedlewo, Poland, July 22-28, 2007.
• "Combinatorial and geometric methods in fixed point theory", Topological Fixed Point Theory and Related Topics, Special Session, AMS-PTM Joint Mathematics Meeting, Warsaw, Poland, July 31-August 3, 2007.
• International Workshop/Conference in Topology and Geometry, Indian Institute of Technology, Mumbai, India, August 17 - 26, 2007.
• Combinatorial and Geometric Group Theory with Applications, University of Dortmund, Germany, August 27 - 31, 2007.
• "Fox torus homotopy groups and the generalized Whitehead products", topology seminar, Federal University of São Carlos, São Carlos, Brazil, October 18, 2007.
• VI Encontro Regional de Topologia, UNESP - São José do Rio Preto, Brazil, October 19-20, 2007.
• CBB Algebra-Topology Colloquium Series, Colby, Bates, and Bowdoin Colleges, Academic Year 2007-8.

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2008

• XVI Encontro Brasileiro de Topologia, São Carlos, São Paulo, Brazil, July 28 - Aug. 1, 2008.

• Geometric group theory and topology, Special Session, AMS regional meeting, Wesleyan University, Middletown, Connecticut, October 11-12, 2008.

2009

• "From fixed points to group theory - a survey", topology seminar, IME Univ. of São Paulo, São Paulo, Brazil, February 20, 2009.
• "Twisted conjugacy classes in finitely generated groups", topology seminar, Kyushu Univ., Fukuoka, Japan, July 3, 2009.
• "Automorphisms of wallpaper groups" VII Encontro Regional de Topologia, Maresias, Brazil, October 19-22, 2009.

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2010

• "Torus homotopy groups and group of homotopy groups", XVII Encontro Brasileiro de Topologia, Rio de Janeiro, Brazil, Aug. 2 - 6, 2010.
• "A combinatorial analog of a theorem of C. Yang", Simpósio de Topologia Algébrica, Brotas, Brazil, October 20-22, 2010.

2011

• “Geometric invariants for groups with application to twisted conjugacy classes,” International conference on Nielsen fixed point theory and related topics, Capital Normal University , Beijing , China , June 20 - 24, 2011.
• “Introduction to Fixed Point Theory,” Fourth Encontro Internacional dos Alunos de Graduação do Instituto de Matemática e Estatística (4thEIAGIME), University of Sao Paulo, Brazil, Aug. 29 – Sept.2, 2011.
• “Fixed points of self homeomorphisms of Sol 3-manifolds,” VIII Encontro Regional de Topologia, Rio Claro, Brazil, October 19 -21, 2011.
• “Whitehead products and torus homotopy groups,” Topological Methods in Nonlinear Analysis Seminar, Copernicus University, Toruń, Poland, November 22, 2011.
• “Equivariant Fixed Point Theory and Related Topics,” Faculty of Mathematics, Copernicus University, Toruń, Poland, November 21 – 24, 2011.

2012

• Geometric invariants of groups and related topics, AMS Special Session, Joint Mathematics Meetings, Boston, Massachusetts, January 4-7, 2012.
• CBB Mellon collaborative conference on geometry, topology, and group theory, Bates College, Lewiston, Maine, January 9-10, 2012.
• “Fixed points of selfmaps on 3-manifolds with Sol-geometry,” topology seminar, Capital Normal University , Beijing , China , May 4, 2012.
• XVIII Encontro Brasileiro de Topologia, Aguas de Lindoia, São Paulo, Brazil, July 29 - Aug. 3, 2012.
• “A Reidemeister trace for periodic points,” topology seminar, Institute of Mathematics, UNAM, Oaxaca , Mexico , October 18, 2012.

2013

• "Bieri-Neumann-Strebel invariants for groups - an introduction,” topology seminar, Capital Normal University , Beijing , China , Feb. 21, 2013.
• “Lefschetz-Nielsen-Reidemeister Theory,” colloquium, Dept. of Mathematics, Florida State University , Tallahassee , Florida , April 19, 2013.
• “Some topics about geometric group theory,” topology seminar, Capital Normal University , Beijing , China , June 21, 2013.
• Geometric invariants and twisted conjugacy,” Geometry and Topology - Special Session, Mathematical Congress of the Americas, Guanajuato, Mexico, August 5 - 9, 2013.
• “Nielsen numbers of self maps of certain 3-manifolds,” Nielsen Theory and Related Topics 2013, National Institute for Mathematical Sciences (NIMS), Daejeon, South Korea, June 24-29, 2013.
• “Fixed points of selfmaps of 3-manifolds,” IX Encontro Regional de Topologia, São Carlos, Brazil, September 19 -21, 2013.

2014

• "Topological methods in nonlinear analysis," Applied Mathematics Colloquium, Institute of Mathematics and Statistics, Univerisity of São Paulo, São Paulo, Brazil, May 23, 2014.
• "Fixed point theory and twisted conjugacy I - IV," post-graduate seminar, Dept. Mathematics, UNESP-Rio Claro, Rio Claro, São Paulo, Brazil, May - June, 2014.
• "Geometric invariants of group extensions with application to twisted conjugacy," Discrete Groups and Geometric Structures with Applications V, Leuven (Heverlee), Belgium, June 2-6, 2014.
• "Whitehead products, Catalan numbers, and the homotopy groups of the 2-sphere," topology seminar, Dept. Mathematics, UFSCar, São Carlos, São Paulo, Brazil, June 12, 2014.
• "Geometric invariants of group extensions with application to twisted conjugacy classes," XIX Encontro Brasileiro de Topologia, São Jose do Rio Preto, São Paulo, Brazil, Aug. 3 - Aug 9, 2014.
• "Fixed point theory for spherical 3-manifolds," Special Session: Topological Fixed Point Theory and Related Topics, Joint Meeting of the German and Polish Mathematical Societies, Poznan, Poland, Sept. 17 - 20, 2014.

2015

• "Two classical topics in algebraic topology," topology seminar, Dept. Math., UNESP-Rio Claro, Rio Claro, São Paulo, Brazil, June 18, 2015.
• "Borsuk-Ulam theorem and topological fixed point theory," topology seminar, Dept. Math., Captial Normal University, Beijing, China, June 26, 2015.
• "Mapping degrees on 3-manifolds," topology seminar, Dept. Math., UNESP-Rio Claro, Rio Claro, São Paulo, Brazil, August 6, 2015.
• "Geometric invariants of groups and R-infinity property," VII Symposium on Nonlinear Analysis, Nicolaus Copernicus University, Toru?, Poland, Sept. 14-18, 2015.
• "Geometric invariants for finitely generated groups, I-II," Topology and Groups, Goa University, Goa, India, October 17-20, 2015.
• "Obstruction theory for coincidences of multiple maps," X Encontro Regional de Topologia, São Carlos, São Paulo, Brazil, October 22-24, 2015.

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