Volume 7, No. 3 (1991)
Revista Matemática Iberoamericana

pp. 221–246 Covering Lemmas and HMO Estimates for Eigenfunctions on Riemannian SurfacesGuozhen Lu
pp. 247–286 Mean value and Harnack inequalities for a certain class of degenerate parabolic equationsJose D. Fernandes
pp. 287–312 Analytic Dependence of Orthogonal PolynomialsEnrico Laeng
pp. 313–349 Harnack Inequality and Green Function for a Certain Class of Degenerate Elliptic Differential OperatorsOscar Salinas