03352nam 22004455a 450 991015193280332120091109150325.03-03719-573-810.4171/073(CKB)3710000000953847(CH-001817-3)106-091109(PPN)178155675(EXLCZ)99371000000095384720091109j20090924 fy 0engurnn|mmmmamaatxtrdacontentcrdamediacrrdacarrierRenormalization and Galois Theories[electronic resource] /Alain Connes, Frédéric Fauvet, Jean-Pierre RamisZuerich, Switzerland European Mathematical Society Publishing House20091 online resource (279 pages)IRMA Lectures in Mathematics and Theoretical Physics (IRMA) ;2523-5133 ;15Noncommutative geometry and motives (à quoi servent les endomotifs?) /Caterina Consani --Renormalisation of non-commutative field theories /Vincent Rivasseau, Fabien Vignes-Tourneret --Mould expansions for the saddle-node and resurgence monomials /David Sauzin --Galois theory, motives and transcendental numbers /Yves André --The combinatorics of Bogoliubov's recursion in renormalization /Kurusch Ebrahimi-Fard, Dominique Manchon --(Non)commutative Hopf algebras of trees and (quasi)symmetric functions /Michael E. Hoffman --Formal differential equations and renormalization /Frédéric Menous --Feynman integrals and multiple polylogarithms /Stefan Weinzierl.This volume is the outcome of a CIRM Workshop on Renormalization and Galois Theories held in Luminy, France, in March 2006. The subject of this workshop was the interaction and relationship between four currently very active areas: renormalization in quantum field theory (QFT), differential Galois theory, noncommutative geometry, motives and Galois theory. The last decade has seen a burst of new techniques to cope with the various mathematical questions involved in QFT, with notably the development of a Hopf-algebraic approach and insights into the classes of numbers and special functions that systematically appear in the calculations of perturbative QFT (pQFT). The analysis of the ambiguities of resummation of the divergent series of pQFT, an old problem, has been renewed, using recent results on Gevrey asymptotics, generalized Borel summation, Stokes phenomenon and resurgent functions. The purpose of the present book is to highlight, in the context of renormalization, the convergence of these various themes, orchestrated by diverse Galois theories. It contains three lecture courses together with five research articles and will be useful to both reseachers and graduate students in mathematics and physics.Algebraic geometrybicsscAlgebraic geometrymscQuantum theorymscAlgebraic geometryAlgebraic geometryQuantum theory14-xx81-xxmscConnes AlainFauvet FrédéricRamis Jean-Pierrech0018173BOOK9910151932803321Renormalization and Galois Theories2565665UNINA