Education

• 1995 : Vordiplome (BAs) in mathematics (Mathematical Institute)
  

  and physics (Institute of Theoretical Physics) at the University of Cologne.

• 1996 : University of Copenhagen , Niels-Bohr-Institute (6 months)
  

  Fellow of the Studienstiftung des Deutschen Volkes.

• 1996-1997 :Bonn University: Physics (Theory Department) and Mathematics (Mathematisches Institut )

• 1997-1998 : Maîtrise de Mathématiques at the University Joseph Fourier (Grenoble, FRANCE).

• 1998-1999 : Bonn University

  University Complutense de Madrid, Mathematics Institute, Algebra Dept. (3 months)

• 1999-2000 : Diploma thesis in theoretical physics (alg. QFT/modular-theory <-> CFT) under Prof. Dr. R. Flume.

• 2001 : Start of my Ph.D (Hopf algebras, Rota-Baxter algebras, and renormalization theory
  

  in perturbative quantum field theory) under Prof. D. Kreimer (IHÉS and Boston University) and Prof. W. Nahm (Bonn University)

• 2002-2003 : Stay at the Center for Mathematical Physics, at Boston University thanks to a grant from the DAAD.
  

  Fellow of the Ev. Studienwerk Villigst.

• 2003-2004 : At IHÉS (France), Mittag-Leffler Inst. (Sweden), and Institut Henri Poincaré (IHP, Paris).
  
• 2005 : ....
• 2007 : Maitre de Conférences, Laboratoire de Mathématiques, Informatique et Applications, Université de Haute Alsace, Mulhouse

Grants

Fellow of the Studienstiftung des Deutschen Volkes (German National Scholarship Foundation).
Fellow of the Deutscher Akademischer Austausch Dienst (DAAD, German Academic Exchange Service).
Fellow of the Evangelisches Studienwerk Villigst e.V.
Post-doctoral research grant, European Post-Doctoral Institute / Institut Post-Doctoral Europeen
Post-doctoral research grant, Programa Juan de la Cierva (Gobierno de Espana)

Some (pre-)Publications[ SPIRES, arXiv]

publications:

• "Two interacting Hopf algebras of trees. A Hopf-algebraic approach to composition and substitution of B-series", (D. Calaque, K.E.-F., D. Manchon), accepted for publictaion in Advances in Applied Mathematics, August 2009.
  
• "Dendriform Equations", (K.E.-F., D. Manchon), Journal of Algebra 322, (2009) 4053-4079.
  
• "Generalized shuffles related to Nijenhuis and TD-algebras", (K.E.-F., P. Leroux), Communications in Algebra, Volume 37, Issue 9, 2009, 3064-3094.
  
• "A noncommutative Bohnenblust-Spitzer identity for Rota-Baxter algebras solves Bogoliubov's recursion", (K.E.-F., D. Manchon F. Patras), Journal of Noncommutative Geometry, Vol. 3, Issue 2 (2009), 181-222.
  
• "Free Rota-Baxter algebras and rooted trees", (K.E.-F., L. Guo), Journal of Algebra and Its Applications, Vol. 7, No. 2 (2008) 167-194.
  
• "A Magnus- and Fer-type formula in dendriform algebras", (K.E.-F., D. Manchon), Foundations of Computational Mathematics, Volume 9, Issue3 (2009), 295.
  
• "New identities in dendriform algebras", (K.E.-F., D. Manchon, F. Patras), Journal of Algebra 320, (2008) 708-727.
  
• "Rota-Baxter algebras and multiple zeta values", (K.E.-F., L. Guo), Integers, Volume 8(2) (2008) Proceedings of CANT 2005 in Honor of Mel Nathanson.
  
• "Coherent unit actions on regular operads and Hopf algebras", (K.E.-F., L. Guo), Theory and Applications of Categories, Vol. 18, (2007), No. 13, 348-371.
  
• "Rota-Baxter algebras and new combinatorial identities", (K.E.-F., J.M. Gracia-Bondia, F. Patras), Letters in Mathematical Physics, 81, (2007), 61-75.
  
• "Rota-Baxter Algebras and Dendriform Algebras", (K.E.-F., L. Guo), Journal of Pure and Applied Algebra, 212, Issue 2, (2008), 320-339.
  
• "A Lie theoretic approach to renormalization", (K.E.-F., J.M. Gracia-Bondia, F. Patras), Comm. in Math. Phys., 276, no.2, (2007), 519-549.
  
• "Hopf algebras in dynamical systems theory", (J. Carinena, K.E.-F., H. Figueroa, J.M. Gracia-Bondia), International Journal of Geometric Methods in Modern Physics, Vol. 4, No. 4, (2007), 577-646.
  
• "On matrix differential equations in the Hopf algebra of renormalization", (K.E.-F., D. Manchon), Adv. Theor. Math. Phys., 10, (2006), 879-913.
  
• "Rota-Baxter Algebras in Renormalization of Perturbative Quantum Field Theory", (K.E.-F., L. Guo), Fields Institute Communications, 50, (2006), 47-105.
  
• "Birkhoff type decompositions and the Baker-Campbell-Hausdorff recursion"(math-ph/0602004), (K.E.-F., L. Guo, D. Manchon), Comm. in Math. Phys., 267, no.3, (2006), 821-845.
  
• "Quasi-shuffles, Mixable Shuffles and Hopf Algebras" (math.RA/0506418), (K.E.-F., L. Guo), J. Algebraic Combinatorics, 24, no 1, (2006), 83-101.
  
• "Combinatorics of renormalization as matrix calculus", (K.E.-F., J.M. Gracia-Bondia, L. Guo, J.C. Varilly), Phys. Lett. B, 632, no 4, 552-558, 2006.
  
• "Hopf algebra approach to Feynman diagram calculations", (K.E.-F., D. Kreimer), J. Phys. A: Math. Gen., 38, (2005), R385-R406.
  
• "The Spitzer Identity", (K.E.-F., L. Guo), contribution to the Encyclopaedia of Mathematics", July 2005.
  
• "On Products and Duality of Binary, Quadratic, Regular Operads" ,(K.E.-F., L. Guo), Journal of Pure and Applied Algebra, 200, (2005), 293-317.
  
• "Integrable Renormalization II: the General case", (K.E.-F., L. Guo, D. Kreimer), Ann. H. Poincaré, 6, (2005), 369-395.
  
• "Integrable Renormalization I: the Ladder case", (K.E.-F., L. Guo, D. Kreimer), J. Math. Phys., 45, No 10, (October 2004), 3758-3769.
  
• "Spitzer's Identity and the Algebraic Birkhoff Decomposition in pQFT", (K.E.-F., L. Guo, D. Kreimer), J. Phys. A: Math. Gen., 37, (2004), 11037-11052.
  
• "On the associative Nijenhuis Relation", The Electronic Journal of Combinatorics, Volume 11(1), (2004), R38.
  
• "Loday-type Algebras and the Rota-Baxter Relation", Lett. Math. Phys., 61, (2002), 139-147.
  
• "On the relation between modular theory and geometry", J. Phys. A: Math. Gen., 35, No 30, (2 August 2002), 6319-6328.
  
  
  pre-publications:
  
• "Twisted dendriform algebras and the pre-Lie Magnus expansion", (K.E.-F., D. Manchon), preprint 10/2009.
  
• "Matrix Representation of Renormalization in Perturbative Quantum Field Theory", (K.E.-F., L. Guo), preprint 08/2005.
  
  
  Conference Proceedings:
  
• "On the Insertion-Elimination Lie algebra of Feynman graphs", (K.E.-F., D. Kreimer, I. Mencattini)
  Proceedings of V International Workshop "Lie Theory and Its Applications in Physics",
  (Varna, June 2003), eds. H.-D. Doebner and V.K. Dobrev, (World Sci, Singapore, 2004, ISBN 981-238-936-9).
• "The combinatorics of Bogoliubov's recursion in renormalization", (K.E.-F., D. Manchon).
  CIRM 2006 workshop "Renormalization and Galois Theory", Org. F. Fauvet, J.-P. Ramis
  
• "A Zassenhaus-type algorithm solves the Bogoliubov recursion", (K.E.-F., F. Patras)
  Proceedings of VII International Workshop "Lie Theory and Its Applications in Physics", (Varna, June 2007), eds. H.-D. Doebner and V.K. Dobrev.

Talks

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 IHÉS.
  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 (LPTHE),
  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 Fisica 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.
  11/22/2007, 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.
  02/20/2008, 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.
  02/26/2008, title: "Solving Bogoliubov's recursion in renormalization".
  
• University of Bergen, Department of Mathematics, Applied and Computational Mathematics, Norway.
  03/10/2008, title: "On matrix differential equations in the Hopf algebra of renormalization".
  
• Universidad de Zaragoza, Departamento de Física Teórica, Theory Seminar, 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".
  
  

Schools, Workshops and Conferences

• NATO Workshop "Modality, Probability, and Bell's theorem".
  19-23/08/2001, Cracow, Poland.
  
• Autumn school 2001 "Topology and Geometry in Physics".
  09/24-28/2001, University of Heidelberg, Rot an d. Rot, Germany. LNP 659, Bick, Eike; Steffen, Frank D. (Eds.)
  
• CIRM Workshop"Hopf algebras, renormalization, Riemann-Hilbert problem"
  09/09-23/2001, University of Marseille, CIRM Luminy, France.
  
• V. International Workshop, "LIE THEORY AND ITS APPLICATIONS IN PHYSICS" (amazon).
  06/16-22/2003, Varna , Bulgaria (see Varna June 2006)
  
• CIRM Workshop"Géometrie non-commutative en mathématique et physique"
  26/01-21/02/2004, University of Marseille, CIRM Luminy, France.
  1st week (01/26-30/2004) + 4th week (02/16-20/2004)
  
• Institut Mittag-Leffler "Program 2003/04 Noncommutative Geometry"
  04/02/-05/01/2004, Institut Mittag-Leffler, Sweden.
  
• Institut Henri Poincaré Semestre "K-théorie et géométrie non commutative"
  03/01/-07/17/2004, Institut Henri Poincaré (IHP, Paris).
  
• Simons Workshop in Mathematics and Physics 2004, Stony Brook, 07/26/-08/27/2004.
  
• Workshop on Combinatorial Hopf Algebras, BIRS, Banff, 08/28/-09/02/2004.
  
• Laboratoire de Physique Théorique et Hautes Energies (LPTHE), 03/14-04/01/2005,
  Universités Pierre et Marie Curie (P6) et Denis Diderot (P7), France.
  
• CIRM Workshop Opérades 2005, 04/04-08/2005, University of Marseille, CIRM Luminy, France.
  
• Mini-Workshop on renormalization and number theory, 06/20-23/2005, Max Planck Institute for Mathematics in the Sciences.
• International Workshop on Noncommutative Geometry (NCG 2005)
  September 11-22, 2005, School of Mathematics, IPM Tehran, Iran
  
• Renormalization and Universality in Mathematics and Mathematical Physics,
  The Fields Institute for Research in Mathematical Sciences, October 2005
  
• Institut de Recherche Mathematique Avancee (IRMA), K-Theory, Cyclic Homology and Operads,
  01/05-07/2006, l'IRMA, Strasbourg, France
  
• CIRM Workshop, "Renormalization and Galois Theory", 03/13-17/2006, University of Marseille, CIRM Luminy, France.
  
• 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, May 8 to May 17, 2006.
  
• IHÉS-Workshop "Théorie des champs, périodes et polylogarithmes", IHÉS - 12-16 juin 2006,
  Organisateurs: Dirk Kreimer (CNRS-IHES), Spencer Bloch (Université de Chicago).
  
• Max Planck Institute for Mathematics in the Sciences, Leipzig, Germany.
  Conference "Hopf Algebras, Combinatorics, and Quantum Field Theory", 25-28.9.2006
  Org.: Bertfried Fauser, Alessandra Frabetti, Frank Sottile
  
• Mathematical Methods for Ab Initio Quantum Chemistry,
  University of NICE, Parc Valrose, Laboratoire J. A. Dieudonné, Friday, Oct. 20-21, 2006.
  Org.: P. Cassam-Chenaï, F. Patras.
  
• Opérades 2006 Strasbourg, 10-11.11.2006, Institut de Recherche Mathématique Avancée, Université Louis Pasteur, Strasbourg, France.
  
• Mini-Workshop Renormalization (poster), 15-16 December 2006
  Max Planck Institute for Mathematics, Bonn.
  
• Conference on Combinatorics and Physics, March 19-23, 2007
  at Max Planck Institute for Mathematics, Bonn.
  Org.: M. Marcolli, W.D. van Suijlekom and K. Ebrahimi-Fard
  
• The Erwin Schrödinger International Institute for Mathematical Physics, Vienna, Austria, 25/03/-10/04/2007.
  Conference "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.
  
• Universidad de Costa Rica, Centro de Investigaciones Matemáticas y Meta-Matemáticas
  thanks to a DAAD (German Academic Exchange Service) grant (21/07/-29/08/2007).
  5 lectures: Perturbative Renormalization in Quantum Field Theory: recent developments
  talk: 08/22/2007, title: There is still life in linear matrix differential equations
• 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.
• Isaac Newton Institute for Mathematical Sciences, Cambridge, UK.
  Workshop: Combinatorial Identities and their Applications in Statistical Mechanics, April 7-11, 2008.
  Organizers: A. Abdesselam, P. Leroux
• Conférence Algèbre combinatoire et Arbres, May 26-30, 2008.
  Institut Camille Jordan, Lyon, France.
  Organizers: F. Chapoton, A. Frabetti.
• Summer School in Mathematical Physics: Rigorous Results in Statistical Mechanics and Quantum Field Theory , June 12 - 20, 2008
  Feza Gursey Institute for Fundamental Sciences
  Organizers: K. Ulker, A. Mardin
• Courant Research Center Göttingen Universität Göttingen, Mathematisches Institut.
  Workshop: Quantum fields and noncommutative geometry, July 11, 2008.
  Organizer: D. Bahns
• Conference: Mould calculus, Resurgence, Resummation, October 15 - 17, 2008
  Laboratoire J. A. Dieudonne, Nice Sophia Antipolis University
  Organizers: F. Fauvet, F. Menous, F. Patras, D. Sauzin
• Mathematisches Forschungsinstitut Oberwolfach
  Seminar: GEOMETRIC NUMERICAL INTEGRATION, November 23rd - November 29th, 2008
  Organizers: Ernst Hairer, Marlis Hochbruck, Arieh Iserles, Christian Lubich
• Workshop: Manifolds and Geometric Integration Colloquia (MaGIC) 2009
  Hornsjo, Lillehammer, Norway, March 2 - 6, 2009.
  Organized by the Numerical Analysis groups in BergenTrondheim
  
  
  

Future Talks, Workshops and Conferences

Spring school+Conference: Algebraic and Combinatorial Structures in Quantum Field Theory
INSTITUT D'ETUDES SCIENTIFIC DE CARGESE, March 23 - April 4, 2 0 0 9
Organizers: P. Cartier, F. Patras, J.-Y. Thibon, K. E.-F.

Coordinates

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http://www.th.physik.uni-bonn.de/th/people/fard/
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Kurusch Ebrahimi-Fard
Laboratoire de Mathématiques
Informatique et Application LMIA
4, rue des Frères Lumière
68093 Mulhouse, France
Tel +(33) 3 89 33 66 52
Fax +(33) 3 89 33 66 54
kurusch.ebrahimi-fard@uha.fr
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http://www.lmia.uha.fr/
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