Communications imparties par Emmanuel Briand

CONFÉRENCES et ATELIERS - CONFERENCES AND WORKSHOPS - CONFERENCIAS Y TALLERES

• 23/01/2025: Almería.
  Normal ordering of \((UD)^n\) when \(UD=qUD+D+1\).
  14esimo Encuentro Andaluz de Matemática Discreta (Universidad de Almería, march 22-24, 2025)
• 14/11/2023: C.I.R.M. (Marseille)
  Stability of Kronecker coefficients through vertex operators
  Symmetry, stability and Interactions with Computation (C.I.R.M., Marseille, November 13-17, 2023)
• 07/07/2023: Cádiz
  Combinatorial proof of the Graham-Pollak Formula for the determinant of the distance matrix of a tree
  (joint work with Luis esquivias, Adrián Lillo, Álvaro Gutierrez and Mercedes Rosas)
  XIII Encuentro Andaluz de Matemática discreta (Cádiz, July 6-7, 2023)
• 27/05/2021: online
  Représentations, polytopes et problème quantique marginal
  Groupe de travail "information quantique"
• 06/02/2020: Universidad de Sevilla.
  The chamber complex for the Littlewood-Richardson coefficients of \(GL_4\)
  (joint work with M. Rosas and S. Trandafir).
  XI encuentros andaluces de Matemática Discreta
• 20/06/2019: Universidad Complutense, Madrid.
  The 144 symmetries of the Littlewood-Richardson coefficients for \(SL_3\) (Computation Presentation; with M. Rosas).
  MEGA 2019 (Effective Methods in Algebraic Geometry,june 17-21, 2021) .
  
• 4/02/2019: Universidad de Cantabria, Santander.
  Normally ordered forms for powers of differential operators.
  Bienal de la RSME (del 4 al 8 de febrero de 2019) .
  Poster (pdf)
• 10/07/2017: Queen Mary University, London.
  On the growth of Kronecker coefficients (poster with A. Rattan and M. Rosas).
  FPSAC 2017 (9-13 July 2017) .
  Poster (pdf)
• 08/09/2016: City University, London.
  Stability of Kronecker coefficients through vertex operators.
  Conference "Kronecker Coefficients 2016" (5-9 sept. 2016) .
• 13/10/2015: Santa Fe Institute, Santa Fe, New Mexico.
  Invariants and moduli of small tensors
  Workshop "Wildness in Computer Science, Physics and Mathematics" (del 12 al 16 de octubre, 2015).
• 13/6/2015: Porto.
  Vertex operators and Kronecker coefficients.
  "Joint International Meeting of the American, European and Portuguese Mathematical Societies", Special session on algebraic combinatorics and Representation Theory (june 10 to june 13, 2015).
• 7/11/2014: AIM, Palo Alto.
  Vertex operators and stability.
  Workshop "Combinatorics and Complexity of Kronecker Coefficients" (nov. 3 to nov. 7, 2014).
• 10/4/2014: IPAM, UCLA, Los Angeles.
  Invariant Theory and Classification Problems.
  Workshop "Tools from algebraic geometry" (Program "Algebraic Techniques for Combinatorial and Computational Geometry").
• 13/11/2013: Toulouse.
  Coefficients de Kronecker et intrication.
  Second CoGIT meeting.
• 19/08/2013: Brno.
  Recent progresses on the Kronecker coefficients.
  Differential Geometry and Applications - DGA 2013.
• 07/11/2011: Carmona.
  Generating vector partitions.
  VII Encuentro Andaluz de Matemática Discreta.
• 20/07/2009: RISC, Hagenberg.
  Quasi-polynomial formulas for the Kronecker coefficients indexed by two two-row shapes (Poster with R. Orellana and M. Rosas)
  FPSAC 2009
• 10/06/2009: Nice.
  Decomposable symmetric tensors.
  Workshop on tensors and interpolation.
• 22/10/2008: Jarandilla de la Vera.
  Kronecker coefficients.
  Seminario de Geometría Tórica V.
• 22/09/2008: Curia (Portugal).
  Piecewise quasi-polynomial formulas for the Kronecker coefficients indexed by two two-rows shapes.
  61ème Séminaire Lotharingien de Combinatoire.
• 11/09/2008: Universidad de Granada.
  Reduced Kronecker coefficients.
  XI encuentro de álgebra computacional y aplicaciones (EACA 2008).
• 18/10/2007: C.I.E.M., Castro-Urdiales.
  Foulkes' conjecture and diagonally symmetric polynomials.
  Conference on diagonally symmetric polynomials and applications.
• 15/10/2007: C.I.E.M., Castro-Urdiales.
  Diagonally symmetric polynomials and computational algebra.
  Conference on diagonally symmetric polynomials and applications.
• 09/07/2007: Zaragoza.
  The configurations of two real projective quadrics.
  Premier Congrès franco--espagnol de mathématiques/Primer congreso franco--español de matemáticas. (Session "Real algebraic and analytic geometry")
• 29/05/2007: CRM, Montréal.
  Diagonal invariants of the symmetric group and products of linear forms.
  Atelier "Interactions entre la combinatoire algébrique et la combinatoire algébrique"/ Workshop "Interactions between algebraic combinatorics and algebraic geometry" (Semestre thématique sur les développements récents en combinatoire au CRM de Montréal/Theme semester "Recent advances in combinatorics at the CRM in Montréal")
• 10/05/2007: CRM, Montréal.
  Kronecker polynomials. (Presented with Rosa Orellana y Mercedes Rosas)
  Atelier "Algèbres de Hopf combinatoires et polynômes de Macdonald"/ Workshop "Combinatorial Hopf algebras and Macdonald polynomials" (Semestre thématique sur les développements récents en combinatoire au CRM de Montréal/Theme semester "Recent advances in combinatorics at the CRM in Montréal")
• 07/09/2006: Sevilla.
  Diagonally symmetric functions of the roots of some systems of polynomial equations.
  Décimo Encuentro de Álgebra Computacional y Aplicaciones (EACA 2006)
• 01/07/2006: Avignon, France.
  The Configurations of two real projective quadrics.
  Sixth International Conference on Curves and Surfaces ,
  Mini-Symposium on Real Algebraic Geometry
• 04/05/2006: RICAM, Linz, Austria.
  Diagonally Symmetric Polynomials of the roots of systems of polynomials equations
  (Poster with Mercedes Rosas).
  Workshop "Gröbner Bases in Cryptography, Coding Theory, and Algebraic Combinatorics"
  (Special Semester on Gröbner Bases and Related methods 2006 at RICAM)
• 09/11/2005: Centre Émile Borel, Institut Henri Poincaré, Paris.
  The configurations of two real projective quadrics.
  Workshop "Real Algebra, Quadratic Forms and Model Theory: Algorithms and applications".
  (Special Trimester at IHP on Real Geometry).
• 14/09/2005: Centre of Mathematics for Applications, Oslo University.
  The configurations of two real projective quadrics.
  2nd COMPASS workshop(Computational Methods for Algebraic Spline Surfaces).
• 06/09/2005: Universität Passau.
  The configurations of two real projective quadrics.
  Annual General network conference RAAG 2005
  (Real Algebraic and Analytic Geometry Research Training Network).
• 01/04/2005: INRIA, Sophia-Antipolis.
  The configurations of two real projective conics.
  Quadrics day.
• 01/06/2004: Universidad de Cantabria, Santander.
  Brill's equations of the subvariety of the products of linear forms.
  EACA 2004 .
• 12/09/2003: University of Kent, Canterbury.
  Multisymmetric polynomials.
  Modular invariants and representations of finite groups: theory and computation.
• 24/01/2003: CIRM, Marseille.
  Polynômes multisymétriques de racines de systèmes d'équations.
  Journées Nationales de Calcul Formel 2003.
• 26/03/2002: Lille.
  Polynômes multisymétriques, aspects combinatoires.
  École Jeunes chercheurs en algorithmique et calcul formel 2002.
• 15/06/2001: Foljuif.
  Calcul de l'idéal des relations entre polynômes multisymétriques élémentaires, et applications.
  Workshop on computational invariant theory of permutation groups and applications
• 07/04/2000: IRMAR, Rennes.
  Polynômes multisymétriques.
  Journée fonctions symétriques.
• 28/01/2000: Universidad Complutense, Madrid.
  Poster avec Federico Gaeta, Mariemi Alonso, Laureano Gonzalez-Vega.
  Congreso de la Real Sociedad Matemática Española 2000
• 11/06/1999: IRMAR, Rennes.
  Algorithme de Lovasz et Schrijver.
  Journée Positivstellensatz.

SEMINAIRES - SEMINARS - SEMINARIOS

• 25/10/2012: Facultad de Matemáticas, Universidad de Sevilla
  Los coeficientes de Kronecker de la teoría de la representación del grupo simétrico.
  Seminario de Matemática Combinatoria
• 20/07/2011: Centre for Mathematics, Universidade de Coimbra
  The subgroup restriction problem for the general linear group.
  Algebra and Combinatorics Seminar.
• 24/01/2011: Universidad de Sevilla
  El problema de la restricción al subgrupo.
  Seminario del departamento de álgebra.
• 16/10/2009: LaBRI (Laboratoire Bordelais de Recherche en Informatique), Université de Bordeaux.
  Coefficients de Kronecker, théorie de l'information quantique et théorie de la complexité.
  Groupe de travail de combinatoire.
• 28/04/2009: Lüdwig-Maximilians-Universität, Münich.
  Kronecker coefficients, reduced Kronecker coefficients and Geometric Complexity Theory.
  Quantum information seminar.
• 23/10/2008: Universidad de Sevilla.
  Coeficientes de Kronecker reducidos y teoría de la complejidad geometrica.
  Seminario del departamento de álgebra.
• 14/06/2007: Universidad Complutense de Madrid.
  Polinomios diagonalmente simétricos y temas afines
  Seminario del departamento de álgebra.
• 12/03/2007: Universidad de Malaga.
  Formas totalmente factorizables y grafos bipartitos.
  Seminario del departamento de Geometria, álgebra y topologia.
• 22/06/2006: Universidad de Sevilla.
  Formas totalmente factorizables e invariantes diagonales del grupo simétrico.
  Seminario del departamento de Álgebra
• 08/06/2006: Universidad de Valladolid.
  Formas totalmente factorizables e invariantes diagonales del grupo simétrico.
  Seminario del departamento de Álgebra, geometria y topologia
• 14/11/2005: Universidad de Sevilla.
  Las configuraciones de dos cuádricas proyectivas reales.
  Seminario del departamento de Álgebra
• 05/04/2005: Université de Nice.
  Polynômes diagonalement symétriques.
  séminaire GALAAD.
• 03/03/2005: Universidad de Cantabria, Santander.
  Las configuraciones de dos cónicas proyectivas reales.
  Seminario del departamento de matemáticas, estadística y computación.
• 05/02/2005: York University, Toronto.
  Multisymmetric polynomials and their applications in algebra.
  Seminar Applied Algebra.
• 05/11/2004: Université de Nice.
  Les configurations de deux coniques réelles projectives.
  Séminaire GALAAD.
• 27/02/2004: IRMAR, Rennes.
  Le calcul des équations de Brill.
  Séminaire de Calcul formel et Complexité.
• 24/02/2004: LACO, Limoges.
  Les équations de la sous-variété des produits de formes linéaires.
  Groupe de travail de calcul formel.
• 23/01/2004: Universidad Complutense, Madrid.
  Las ecuaciones de la variedad de los productos de formas lineales.
  Seminario de álgebra.
• 05/06/2003: Universidad de Cantabria, Santander.
  Teoria de los invariantes y enredimiento cuántico.
  Seminario del departamento de matemáticas, estadística y computación.
• 30/04/2003: LIPN, Université de Paris XIII, Villetaneuse.
  Théorie des invariants et intrication quantique.
  Séminaire d'informatique.
• 07/01/2003: IGM, Université de Marne-la-Vallée.
  Polynômes multisymétriques.
  Séminaire.
• 07/03/2002: Université de Nantes.
  Polynômes multisymétriques et variétés de Chow de n points de l'espace projectif.
  Séminaire d'algèbre et topologie.
• 11/01/2002: Université de Bretagne occidentale, Brest.
  Polynômes multisymétriques et géométrie.
  Séminaire d'algèbre et géométrie.
• 30/11/2001: IRMAR, Rennes.
  Polynômes multisymétriques, formes factorisables et variétés de sommes de puissances.
  Séminaire de calcul formel et complexité.
• 02/02/2001: IRMAR: Rennes.
  Un algorithme pour calculer l'idéal des relations entre les polynômes multisymétriques.
  Séminaire de calcul formel et complexité.
• 26/01/2000: Universidad Complutense, Madrid.
  Polynômes multisymétriques des racines d'un système d'équations à plusieurs variables.
  Seminario de álgebra.
• 26/02/1999: Universidad Complutense, Madrid.
  Identités de Newton multisymétriques.
  
• 15/01/1999: IRMAR, Rennes.
  Identités de Newton multisymétriques.
  Séminaire de Calcul formel et Complexité.