Kurusch Ebrahimi-Fard
2001
- NATO Workshop "Modality, Probability, and Bell's
theorem".
08/19-23/2001, Cracow, Poland.
title: "Localization properties of KMS-states in 2-dim. chiral conformal QFT".
2002
-
NUMBER THEORY/ ALGEBRAIC GEOMETRY STUDENTS SEMINAR AT B.U.
09/24/2002, Boston University, Department of Mathematics and Statistics.
title: "Rota-Baxter Algebras".
2003
- Rutgers University at Newark, Mathematics and Computer Science, Algebra and Number Theory seminar.
03/12/2003, title: "The Rota-Baxter Equation and Quasi-Shuffles".
- V. International Workshop, "LIE THEORY AND ITS APPLICATIONS IN
PHYSICS".
06/16-22/2003, Varna, Bulgaria.
title: "Insertion and Elimination: the Lie algebra of Feynman graphs".
- Boston University Mathematical Physics Seminar.
11/04/2003, Center for Mathematical Physics, Boston University.
title: "From Baxter to Baxter".
- Rutgers University at Newark, Mathematics and Computer Science, Algebra and Number Theory seminar.
11/07/2003, title: "Aspects of the Connes-Kreimer Hopf Algebra".
- Institut de Recherche Mathématique Avancée de Strasbourg,
Séminaire "Algèbre et Topologie".
12/16/2003, title: "The Rota-Baxter map and unitary infinitesimal bialgebras".
2004
- Groupe de travail, F. Hélein - J. Kouneiher - V. Roubtsov,
Système intégrable, géométrie différentielle et théorie quantique des champs",
Université Paris 7, UFR de Mathématiques, Equipe Géométrie et Dynamique.
03/02/2004, title: "Classical R-Matrices, Rota-Baxter Operators and the Connes-Kreimer Hopf algebra".
- Seminar on Mathematical Physics at the Université de
Bourgogne, (SEMINAIRE de MATHS-PHYSIQUE).
03/18/2004, title: "On the Lie Algebra of Renormalization Theory".
- Séminaires de Physique Théorique,
at I.H.É.S..
03/31/2004, title: "On some aspects of the Rota-Baxter Relation".
- Rutgers University at Newark, Mathematics and Computer Science,
Algebra and Physics Seminar.
11/08/2004, title: "The Rota-Baxter Relation and the Connes-Kreimer
approach to Renormalization in pQFT".
- Workshop on
Combinatorial Hopf Algebras. BIRS, Banff,
08/30/2004, title: "Rota-Baxter Algebras and Hopf Algebras".
- Institut GIRARD DESARGUES, Université Lyon 1,
Séminaire de Physique Mathématique.
10/08/2004, title: "The Rota-Baxter Relation in Mathematics and Theoretical Physics".
- Dipartimento di Fisica, Università degli Studi di Roma "Tor Vergata",
Seminars in ``Tor Vergata''.
10/11/2004, title: "Bogoliubov's R-Operation and The Lie Algebra of Renormalization".
- Laboratoire de Mathématiques, l' Université Blaise Pascal de
Clermont-Ferrand, Séminaire de Mathématiques
Pures.
10/19/2004, title: "On the algebraic Birkhoff decomposition in perturbative Quantum Field Theory".
- Institut de Recherche Mathématique Avancée de Strasbourg,
Séminaire "Algèbre et Topologie".
10/26/2004, title: "Unital infinitesimal bialgebras, Lie bialgebras, and Rota-Baxter operators".
- Universität Göttingen, FAKULTÄT FÜR PHYSIK,
Institut für Theoretische Physik,
''Seminar Quantenfeldtheorie".
11/25/2004, title: "Rota-Baxter Algebras and Bogoliubov's R-Operation".
- Université de Nice - Sophia Antipolis, Laboratoire J.-A. Dieudonné,
Séminaire d'Algèbre & Topologie, France.
12/13/2004, title: "Rota-Baxter Type Operators, Generalized Shuffle Products, and Dendriform Algebras".
- Bonn University, Physics Institute,
theoretical physics seminar, Germany.
12/14/2004, title: "Algebraic structure of renormalization theory of perturbative QFT".
2005
- Universidad Complutense de Madrid,
Departamentos de Física Teórica I,
SEMINARIOS, Spain.
02/03/2005, title: "Bogoliubov's R-Operation in renormalization and Rota-Baxter Algebras".
- Universidad de Zaragoza,
Departamento de Física Teórica,
Theory Seminar, Spain.
02/09/2005, title: "Rota-Baxter and associative Nijenhuis Algebras: An introduction".
- Universidad de Zaragoza,
Departamento de Física Teórica,
Theory Seminar, Spain.
02/14/2005, title: "The Rota-Baxter Relation, Connes-Kreimer Hopf Algebra, and the classical Yang-Baxter equation".
-
Laboratoire de Physique Théorique et Hautes Energies
(L. P. T. H. E.),
Universités Pierre et Marie Curie (P6) et Denis Diderot (P7),
Theory Seminar, France.
03/24/2005, title: "On the Birkhoff Decomposition in pQFT: the Baker-Campbell-Hausdorff recursion".
- CIRM Workshop,
Opérades 2005, J.-L. Loday,
Alessandra Frabetti,
CIRM, Luminy, FRANCE.
04/04/2005, title: "Quantum Field Theory, Rota-Baxter Algebra, and Rooted Trees".
- University of Pennsylvania
Department of Mathematics,
Deformation Theory Seminar, U.S.A.
04/13/2005, title: "On the structure of free non-commutative Rota-Baxter algebras".
- Rutgers University New Brunswick, Mathematics Department,
Algebra Seminar, U.S.A.
04/15/2005, title: "Infinitesimal bialgebras and associative classical Yang-Baxter equations".
- Kolchin Seminar in Differential Algebra,
Hunter College of CUNY, New York City, U.S.A.
04/16/2005, title: "Algebraic Birkhoff decomposition in pQFT, and the diagrammatic Renormalization Group differential
equation".
- Rutgers University at Newark, Mathematics and Computer Science,
Mathematics Colloquium, U.S.A.
04/20/2005, title: "Algebraic Relations for q-Analogs of Multiple Zeta Values".
- Texas A&M University,
Mathematics Department,
Algebra and Combinatorics Seminar, U.S.A.
04/22/2005, title: "Quantum Field Theory and Rooted tree Hopf Algebras: an introduction to the recent work of
Connes-Kreimer".
- Universidad Autonoma de Madrid,
Theoretical Physics Department, Theory Seminar, Spain.
05/26/2005, title: "Aspects of Rota-Baxter operators: a Factorization theorem and Rooted Trees".
- Max Planck Institute for Mathematics in the Sciences,
Leipzig, Germany.
Mini-Workshop on renormalization and number theory,
06/20/2005 title: "Rota-Baxter Algebras: Factorizing Feynman Rules".
- Max Planck Institute for Mathematics, Bonn,
Gauge Theory Seminar, Germany.
07/15/2005, title: "Rota-Baxter Algebras and Renormalization".
- International Workshop on Noncommutative Geometry (NCG 2005)
September 11-22, 2005, School of Mathematics, IPM Tehran, Iran
4 Lectures: "Renormalization in Quantum Field Theory via
Hopf Algebras (after Connes and Kreimer) (I-IV)".
- York University,
Department of Mathematics and Statistics,
APPLIED ALGEBRA SEMINAR, Toronto, Ontario, CANADA.
10/17/2005, title: "Combinatorics of renormalization as matrix calculus, Rota--Baxter operators, and rooted tree
shuffles".
2006
- The Department of Physics at Queen Mary, University of London,
String theory seminar, London, Great Britain.
01/19/2006, title: "Matrix Representation of the Combinatorics of Renormalization in Perturbative QFT".
- CIRM Workshop,
"Renormalization and Galois Theory", F. Fauvet, J.-P. Ramis, CIRM, Luminy, France.
03/17/2006, title: "A Motif for Simple Algebra Decomposition or Under the Spell of the Rota-Baxter Relation".
- Institut de Mathématiques de Jussieu, Paris 6 et 7,
Séminaire sur les Algèbres Enveloppantes, Paris, France.
04/28/2006, title: "Birkhoff type decompositions: renormalization in perturbative
QFT as a classical factorization problem".
-
Department of Mathematics,
Vanderbilt University, Nashville, Tennessee, U.S.A.
The fourth annual spring institute on noncommutative geometry
and operator algebras
Noncommutative Geometry, Quantum Field Theory and Motives.
05/14/2006, title:"Birkhoff type
decompositions and the Baker-Campbell-Hausdorff recursion".
- University of Pennsylvania
Department of Mathematics,
Deformation Theory Seminar, U.S.A.
05/18/2006, title: "On matrix differential equations in the Hopf
algebra of renormalization".
- Feza Gursey Institute, Istanbul, Turkey.
07/24/2006, title: "On Connes-Kreimer's Hopf algebra of renormalization".
07/26/2006, title: "On matrix differential equations in the Hopf
algebra of renormalization".
-
Max Planck Institute for Mathematics in the Sciences, Leipzig, Germany.
Conference
"Hopf Algebras, Combinatorics, and Quantum Field Theory", 25-28.9.2006
09/27/2006, title: "Locality, the beta function and the Dynkin idempotent".
-
Université de Nice - Sophia Antipolis, Laboratoire J.-A. Dieudonné, France.
Workshop:
"Mathematical Methods for Ab Initio Quantum Chemistry".
10/20/2006, title: "On Connes-Kreimer's beta function and renormalization group flow".
- Laboratoire de Mathématiques, l'Université Blaise Pascal de
Clermont-Ferrand, Séminaire de Mathématiques
Pures, France.
10/24/2006, titre: "Sur la fonction beta de Connes-Kreimer".
-
Université de Nantes,
Département de Mathématiques, Laboratoire Jean Leray,
Séminaire d'Algèbre et de Topologie, France.
10/27/2006, titre: "Méthodes de Lie en renormalisation".
-
Université Paris-Nord,
Institut Galilée,
Laboratoire d'Informatique,
Séminaire Combinatoire, Informatique et Physique, France.
10/31/2006, titre: "Relation de Rota-Baxter et décomposition de Birkhoff à la Connes-Kreimer des
règles de Feynman".
-
Université de Marne-la-Vallée,
Institut d'électronique et d'informatique Gaspard-Monge,
Laboratoire d'Informatique,
Groupe de travail: Combinatoire algébrique et calcul symbolique, France.
11/03/2006, titre: "Relation de Rota-Baxter et décomposition de Birkhoff à la Connes-Kreimer des
règles de Feynman".
- Institut de Recherche Mathématique Avancée de Strasbourg,
Séminaire "Algèbre et Topologie".
11/14/2006, titre: "Méthodes de Lie en renormalisation".
- Universität Bonn,
Mathematisches Institut,
Oberseminar Globale
Analysis, Germany.
11/21/2006, title: "On Spitzer's identity".
-
Université Paris-Nord,
Institut Galilée,
Laboratoire d'Informatique,
Séminaire Combinatoire, Informatique et Physique, France.
12/19/2006, title: "Rota-Baxter type relations and
generalized shuffles and bialgebras".
2007
- Laboratoire de Mathématiques, Informatique et
Applications, Université de Haute Alsace, Mulhouse, France.
01/11/2007, title: "Solving Bogoliubov's recursion for renormalization".
- Max Planck Institute for Mathematics, Bonn,
Gauge Theory Seminar, Germany.
02/07/2007, title: "Solving Bogoliubov's recursion for renormalization".
- The Erwin Schrödinger International Institute for Mathematical Physics, Vienna, Austria.
"Mathematical and Physical Aspects of Perturbative Approaches to Quantum Field Theory", 26-30.03.2007
Org.: R. Brunetti, K. Fredenhagen, D. Kreimer and J. Yngvason
03/27/2007, title: "Solving Bogoliubov's recursion for renormalization".
-
Universität Göttingen, Mathematisches Institut,
Kolloquium der Mathematischen Gesellschaft.
05/24/2007, title: "Solving Bogoliubov's recursion for renormalization".
- Universidad de Costa Rica,
Escuela de Física and
Centro de Investigaciones Matemáticas y Meta-Matemáticas.
08/22/2007, title: "There is still life in linear matrix differential equations".
- Conference, 09/10-15/2007: Universite de Nice Sophia Antipolis,
Laboratoire J.A. Dieudonné,
Shuffles, Descents and Representations,
Conference in Memory of Manfred Schocker.
Org.: P. Diaconis, F. Patras, A. Ram, Ch. Reutenauer
09/11/2007, title: "Rota-Baxter Type Algebras and Generalized Shuffle Products".
-
Conference, COMBINATORIAL PHYSICS, November 21-24, 2007.
Institute of Nuclear Physics PAN, Cracow, Poland
Organizers: P. Blasiak, A. Horzela, G. H. E. Duchamp, K. A. Penson, A. I. Solomon.
22/11/2007, title: "On the pre-Lie Magnus and Fer expansion".
-
Institut de Recherche Mathématique Avancée de Strasbourg,
Séminaire Algèbre et Topologie.
12/04/2007, title: "The pre-Lie Magnus expansion on the Lie algebra of Feynman graphs".
- Laboratoire de Mathematiques,
l'Universite Blaise Pascal de Clermont-Ferrand, France.
Groupe de Travail Geometrie, Algebre, Algebre d'Operateur.
12/07/2007, title: "The pre-Lie Magnus expansion on the Lie algebra of Feynman graphs".
2008
- Mathematical Institute, University of Oxford, Stochastic Analysis Seminars, Great Britain.
20/02/2008, title: "The pre-Lie Magnus and Fer expansion".
-
Groupe de travail: Algebres de Hopf et calcul moulien
L'Observatoire de Paris, mardi de 14h30 -- 16h30.
26/02/2008, title: "Solving Bogoliubov's recursion in renormalization".
- University of Bergen, Department of Mathematics, Applied and Computational Mathematics,
Norway.
10/03/2008, title: "On matrix differential equations in the Hopf algebra of renormalization".
- Universidad de Zaragoza,
Departamento de F?sica Te?rica,
Theory Seminar, Spain.
04/03/2008, title: "Rota-Baxter algebras, new combinatorial identities and applications".
-
Isaac Newton Institute for Mathematical Sciences, Cambridge, UK.
Workshop: Combinatorial Identities and their Applications in Statistical
Mechanics, April 7-11, 2008.
04/10/2008, title: "Solving Bogoliubov's recursion in renormalisation using a simple algebraic identity".
- Université Claude Bernard Lyon 1,
Institut Camille Jordan, Lyon, France.
Conférence Algèbre combinatoire et Arbres, May 26-30, 2008.
05/29/2008, title: "The pre-Lie relation, rooted trees and the Magnus expansion".
- Feza Gursey Institute, Istanbul, Turkey.
06/23/2008, 2hs, title: "The pre-Lie relation, rooted trees and the Magnus expansion".
- Hausdorff Center for Mathematics,
Bonn University
Conference:
The manifold geometries of quantum field theory, June 30 - July 5, 2008
07/02/2008, title: "Two rooted tree Hopf algebras and the pre-Lie Magnus expansion".
- Courant Research Center Göttingen Universität
Göttingen, Mathematisches Institut.
Workshop:
Quantum fields and noncommutative geometry, July 11, 2008.
07/11/2008, title: "Hopf Algebras in perturbative Quantum Field Theory".
- University of Bergen, Department of
Mathematics, Bergen, Norway.
09/09/2008, title: "Hopf Algebras and Lie Group Integrators".
- Universitat Jaume I, Departament de Matematiques,
Castello de la Plana, Spain.
09/24/2008, title: "The pre-Lie Magnus expansion and linear dendriform equations".
- Rencontre :
Methodes numeriques et algebres de Hopf d'arbres, octobre 23 - 24, 2008
Laboratoire de Mathematiques,
Universit? Blaise Pascal, Clermont-Ferrand, France.
10/24/2008, title: "The pre-Lie Magnus and Fer expansions and linear dendriform equations".
2009
-
Seminario Rubio de Francia,
Area de Analisis Matematico,
Departamento de Matematicas,
Universidad de Zaragoza, Spain.
2/12/2009, title: "On the Magnus expansion".
- Workshop:
Manifolds and Geometric Integration Colloquia (MaGIC) 2009
Hornsjo, Lillehammer, Norway, March 2 - 6, 2009.
3/5/2009, title: "On the substitution law for B-series"
- Mathematisches Institut Uni
Basel,
Seminar fuer Analysis und Numerik.
4/17/2009, title: "On the Magnus expansion".
- Scuola Internazionale Superiore di Studi Avanzati/International School for Advanced Studies
(S.I.S.S.A.),
Mathematical Physics sector,
Non-commutative geometry seminar, Trieste, Italy.
5/5/2009, title:"The combinatorics of Bogoliubov's recursion in perturbative renormalisation",
7/5/2009, title:"The pre-Lie relation, rooted trees and the Magnus expansion".
- International Conference on Scientific Computation and
Differential Equations SciCADE 2009
May 24 - 29, Beijing, China.
28/5/2009, title:"On the pre-Lie Magnus and Fer expansions".
- Groupe de travail :
Theorie des champs periodes et polylogarithmes II, 2 -- 5 juin 2009,
Institut des Hautes Etudes Scientifiques,
Bures-sur-Yvette, France.
05/06/2009, title: "From linear differential equations to Bogoliubov's recursion in perturbative
renormalization".
- Universidad Nacional Autonoma de Mexico (UNAM),
Instituto de Ciencias Nucleares,
Mexico-City, Mexico.
18/06/2009, title: "On the pre-Lie Magnus expansion".
- Universidad Nacional Autonoma de Mexico (UNAM),
Instituto
de Matematicas, Unidad Morelia, Mathematical
Physics Seminar, Morelia, Mexico.
19/06/2009, title: "On the pre-Lie Magnus expansion".
-
Centro de Investigacion en Matematicas CIMAT, Guanajuato, Mexico.
Summer School:
Renormalization, graph polynomials, Hopf algebras and relations with motives (June 22 - July 1, 2009)
4 lectures, title: "Combinatorial Hopf algebras".
Centro de Investigacion en Matematicas CIMAT, Guanajuato, Mexico.
International Workshop: Algebraic geometry and algebra related to renormalization (July 3 - 4, 2009)
Talk, 03/07/2009, title: "Pre-Lie Butcher series".
- 2009 SIAM Annual Meeting and Conference on
Control and Its Applications (CT09), July 6-8,
2009, Denver, Colorado, U.S.A.
08/07/2009, title: "On the pre-Lie Magnus and Fer expansions".
- School-Conference on Hopf algebras
Hopf-in-Lux at
University of Luxembourg.
Organizers: Said Benayadi, Philippe Bonneau, Yael Fegier, Martin
Schlichenmaier
3 Lectures: "Modern aspects of perturbative renormalization"
Talk, 16/07/2009, title: "On the pre-Lie Magnus and Fer expansions".
- School of Mathematical and Computer Sciences,
Dept. of Mathematics,
Heriot-Watt University, Edinburgh,
Scotland.
Talk, 08/12/2009, title: "Multiplicative renormalization and its algebraic structure".