Talks | Nantel Bergeron

Nantel Bergeron's selected talks.

FPSAC poster and complement info. FPSAC London, July 2017
A MN Rule for Quantum Cohomology of the Flag Manifold CRM workshop on Equivariant Combinatorics, Montreal, June 2017
Combinatorial Hopf algebras Seminaire Lotharingien de Combinatoire, Ottrott, France (in honor of J. Y. Thibon), March 2017
Hypergraphical polytope and antipode for hypergraphs Combinatorial Algebra and Algebraic Combinatoric 2017, Montreal, January 2017
Antipode et Hypergraphes Combinatoire Enumerative et Algebrique , LaBRI, Bordeaux, December 2, 2016
Hopf (pipe) dreams Algebraic Combinatorics and Group Action, Herstmonceux, England, Jully 11-15, 2016
Why find cancelation free formula (positive) for antipode? Positivity in Algebraic Combinatorics, KIAS, Seoul, June 15-17, 2016 [This is an extended version of the CMS talk. See ALSO the minicourses BELOW
Following Pipe Dreams Tutte Colloquium, Waterloo University, May 27, 2016. [This is a picture of my notes]
Why find cancelation free formula for antipode? Session talk, CMS Meeting in Montreal, Dec 4-7, 2015.
G-Basis in non-commutative vars and parallelism Plenary talk at the Sage Days 65, Chicago, USA, June 8-12, 2015. [If you are interested in the sage code and worksheet, email me]
Representations et super-representations des groupes Plenary talk at the 18e edition du colloque panquebecois des etudiants de l'ISM, Montreal, 15-17 mai 2015
Antipode in a Hopf Algebra of Subword Complexes (with Cesar Ceballos) XX Coloquio Latinoamericano de Algebra, Lima, Peru, Dec 8, 2014 and AMS MSU, East Lansing, USA March 15, 2015
On Product of Immaculate Basis (with Chris Berg, Franco Saliola, Luis Serrano and Mike Zabrocki) MSU COMBINATORICS AND GRAPH THEORY, MSU, East Lansing, April 2014. Montreal, CRM: Combinatorial representation theory, Arpil 21-25, 2014.
Categorification, Tower of Algebras and Combinatorial Hopf Algebras (with C. Benedetti, N. Thiem, M. Aguiar and more) AMS meeting, Temple, Philadelphia, Oct 2013.
The Immaculate Basis of NSym (with Chris Berg, Franco Saliola, Luis Serrano and Mike Zabrocki) MSU COMBINATORICS AND GRAPH THEORY, MSU, East Lansing, Oct 2013. REMARK: I did not cover the last theorem. This was done in a second talk at MSU.
Positivity in Combinatorial Hopf Algebras, (with Sami Assaf and Frank Sottile, and with Caro Benedetti) Mathematical Congress of the Americas, Guanajuato, Mexico, August, 2013
NCSym and supercharacters, (with Nat Thiem) Conference in the honour of 60th of Christophe Reutenauer, Cetraro, Italy, Jully 2013.
Representation, Tower of Algebras and Combinatorial Hopf Algebras, (with Caro Benedetti, Nat Thiem and many more) International Workshop in Combinatorial Algebra, Halifax, June 2013.
Immaculate basis and representation, (with Chris Berg, Franco Saliola, Luis Serrano and Mike Zabrocki) AMS meeting in Boulder, Colorado, USA, April 2013.
Hopf Monoids of supercharacters, (with Marcelo Aguiar and Nat Thiem, also with Caro Benedetti, Aaron Lauve, Franco Saliola and many more) CMS meeting in Montreal, December 2012.
Immaculate basis of Quasisymmetric functions, (with Chris Berg, Franco Saliola, Luis Serrano and Mike Zabrocki) AMS conference in Akron, USA, October 2012.
Combinatorial Hopf algebras, Categorification and Representation Theory Colloquium, Stanford University, USA, December 2011.
Why a supercharacter theoretic Hopf Monoid of set partitions? (with Marcelo Aguiar and Nat Thiem) AMS meeting in Cornell, USA, September 2011.
A Hopf Monoid of supercharacters, (with Marcelo Aguiar and Nat Thiem and many more) CANADAM meeting in Victoria, June 2011.
Primitive Orthogonal Idempotents For R-Trivial Monoids, (with Chris Berg, Sandeep Bhargava and Franco Saliola) AMS meeting in Las Vegas, USA, May 2011.
LR Rule for Schuberts vs Grassmannians, (with Sami Assaf and Frank Sotille) Combinatorial Algebra meet Algebraic Combinatorics, Lakehead, Ontario, January 2011.
Primitive Orthogonal Idempotents For R-Trivial Monoids, (with Chris Berg, Sandeep Bhargava and Franco Saliola) CMS meeting in Vancouver, Dec 2010.
Combinatorial Inverse System (commutative and non-commutative), (with Jean-Christophe Aval and Huilan Li) SIAM meeting in Austin, Dec 2010.

Nantel Bergeron's selected minicourses.

Dias de Combinatoria (Espagnol or English) Summer School on Combinatorics, Medellin, Colombia July, 2017.
Combinatorial Hopf Algebra, quasisymmetric functions and antipode PART I and PART II. Summer School on Algebraic Combinatorics, KIAS, Seoul, June 13-14, 2016
Combinatorial Hopf Algebras, Encuentro Colombiano de Combinatoria workshop in Bogota, Colombia, June 2012. The suggested exercise from Caro Benedetti: ecco_ex1 , ecco_ex2 , ecco_ex3 , ecco_ex4 .