Table of contents : Admissible superharmonic functions....Pages 1-8 Principe de Harnack a la frontiere et problemes de frontiere de Martin....Pages 9-28 Courant superficiel et champ magnetostatique associe....Pages 29-34 Quasi-units in mixed lattice structures....Pages 35-54 Bases in standard balayage spaces....Pages 55-63 Autodual H-cones....Pages 64-77 Characterization of perturbations of harmonic spaces....Pages 78-83 Standard balayage spaces and standard Markov processes....Pages 84-105 Riesz potentials on manifolds....Pages 106-120 Prolongement surharmonioue dans un espace harmonique Notion de flux....Pages 121-143 Principe complet du maximum et principe complet du maximum relatif....Pages 144-158 On boundary Harnack principles and singularities of extremal harmonic functions....Pages 159-162 Positive eigen elements for an infinitesimal generator of a diffusion semi-group and their integral representations....Pages 163-184 Problemes au bord sur un espace harmonique....Pages 185-190 A remark on the singular part of a convolution kernel satisfying the domination principle....Pages 191-193 Harmonic functions of bounded mean oscillation and a generalization to vector lattices of continuous functions....Pages 194-208 A regular boundary supporting representing measures of bounded functions in a Bauer harmonic space....Pages 209-211 On the set of semiregular points....Pages 212-218 Connecting of local operators and evolution equations on networks....Pages 219-234 The classical Dirichlet problem and its generalizations....Pages 235-266 Singularities of locally analytic processes....Pages 267-288 Support biharmonique et supports harmoniques associes....Pages 289-298 Fine and admissible convergence for the unit ball in ℂ n ....Pages 299-315 Problem section....Pages 316-319