Edit Profile (opens in new tab) Portier, Richard Co-Author Distance Author ID: portier.richard Published as: Portier, Richard Documents Indexed: 2 Publications since 1988 Co-Authors: 3 Co-Authors with 2 Joint Publications 13 Co-Co-Authors Co-Authors 0 single-authored 2 Gratias, Denis 1 Cornier, Marianne 1 Quiquandon, Marianne Serials 2 Acta Crystallographica. Section A Fields 1 Convex and discrete geometry (52-XX) 1 Optics, electromagnetic theory (78-XX) 1 Quantum theory (81-XX) 1 Statistical mechanics, structure of matter (82-XX) Publications by Year