Includes bibliographical references.

Cusptype singularities of real analytic curves in the complex plane ; The F. and M. Riesz property for vector fields ; Gevrey hypoellipticity for sums of squares of vector fields: some examples ; ^1,1 aps with values into ^1 ; Analytic hypoellipticity and spectral problems for Schrodinger's equation ; Formal solutions for higher order nonlinear totally characteristic PDEs with irregular singularities ; Uniqueness of ^\infty solutions for a class of conormal V vector fields ; Impact of lower order terms on a model PDE in two variables ; Global analytic hypoellipticity for a class of quasilinear sums of squares of vector fields ; Representations via overdetermined systems ; A semiexplicit fundamental domain for a Picard modular group in complex hyperbolic space ; Complex horospherical transform on real sphere ; On analyticity in space variable of solutions to the KdV equation ; The multinomial distribution and some Bergman kernels ; Several results for holomorphic mappings from mathbf B^n into mathbf B^N ; Whitney and Mizohata structures ; Oneside Liouville theorems for a class of hypoelliptic ultraparabolic equations ; Acyclic sheaves in Banach spaces ; A Liouville type theorem for some conformally invariant fully nonlinear equations ; Norm closure of classical pseudodifferential operators does not contain Hormander's class ; Remarks on the wellposedness of the nonlinear Cauchy problem ; Representation of solutions of planar elliptic vector fields with degeneracies ; Some recollections of working with Francois Treves ; Boundary value problems on Lipschitz domains in Bbb R^n or Bbb C^n ; Hyperbolic systems well posed in all Gevrey classes Patrick Ahern and Xianghong Gong ; S Berhanu and J Hounie ; Antonio Bove ; Haim Brezis Petru Mironescu and Augusto C Ponce ; Sagun Chanillo ; Hua Chen and Zhuangchu Luo ; Ferruccio Colombini and Nicolas Lerner ; Paulo D Cordaro and Nicholas Hanges ; Makhlouf Derridj and David S Tartakoff ; Michael Eastwood ; Gabor Francsics and Peter D Lax ; Simon Gindikin ; Jennifer Gorsky and A Alexandrou Himonas ; Lars Hormander ; Xiaojun Huang Shanyu Ji and Dekang Xu ; Howard Jacobowitz ; Alessia Elisabetta Kogoj and Ermanno Lanconelli ; Laszlo Lempert ; Aobing Li and Yan Yan Li ; Severino T Melo ; Guy Metivier ; Abdelhamid Meziani ; Louis Nirenberg ; MeiChi Shaw ; Sergio Spagnolo