Hyperfunctions and Theoretical Physics : Rencontre de Nice, 21-30 Mai 1973

aux hyperfonctions.- Pseudo-differential operators acting on the sheaf of microfunctions.- Micro-hyperbolic pseudo-differential operators.- Microanalyticite de la matrice S.- Macrocausality, physical-region analyticity and independence property in S-matrix theory.- Appendix Microlocal essential support of a distribution and decomposition theorems - An introduction.- Unitarity and discontinuity formulae.- Geometry of the N point P space function of quantum field theory.- Some applications of the Jost-Lehmann-Dyson theorem to the study of the global analytic structure of the N point function of quantum field theory.- Quelques aspects globaux des problemes d'edge - of - the - wedge.