Equations Differentielles et Systemes de Pfaff dans le Champ Complexe I

to the asymptotic theory of linear homogeneous difference equations.- Formes canoniques rationnelles d'un systeme differentiel a point singulier irregulier.- The matrix of a connection having regular singularities on a vector bundle of rank 2 on IP1(c).- Reduction of singularities of the differential equation A dy=B dx.- A poincare-bendixson theorem for compact kahler manifolds.- Birkhoff invariants and meromorphic differential equations.- Remarques sur les equations differentielles a points singuliers irreguliers.- Regular singularities along normal crossings.- Etude de certains systemes de pfaff avec singularites.- A propos du théorème de Borel-Ritt a plusieurs variables.- Sur la monodromie des systemes de Pfaff du type de Fuchs sur ?m(?).- The problems of Riemann and Hilbert and the relations of fuchs in several complex variables.