Volume 4, No. 3 (1988)
Revista Matemática Iberoamericana

pp. 355–405 Estimates of Kernels on Three-Dimensional ManifoldsCharles FeffermanJoseph J. Kohn
pp. 407–451 Infinite Group Actions on SpheresGaven J. Martin
pp. 453–468 Comparison Principles and Pointwise Estimates for Viscosity Solutions of Nonlinear Elliptic EquationsNeil S. Trudinger
pp. 469–486 Calderón's Problem for Lipschitz Classes and the Dimension of QuasicirclesKari Astala