Mots-clés:
1999, ALGEBRES DE HOPF, BROUDER, BUTCHER, CONNES, DIRAC, DIXMIER, DRINFEL, DYSON, EN, EQUATIONS DIFFERENTIELLES, EUCLIDE, FEYNAMN, FULTON, GEOMETRIE NON COMMUTATIVE, GREEN, HOCHSCHILD, HOPF, KNIZHNIK, KONTSEVICHCHEN, KREIMER, KUTTA, LAGRANGE, LIE, MC PHERSON, MILNE, MILNOR, MOSCIVICI, PICARD, RENORMALISATION, RUNGE, SCHWINGER, THEORIE QUANTIQUE DES CHAMPS, WULKEBHAAR, ZAMOLODCHIKOV