Singularities in fluids, plasmas, and optics / ed. by Russel E. Caflisch and George C. PapanicolaouAsymptotic analysis for periodic structures / [by] Alain Bensoussan, Jacques-Louis Lions, George PapanicolaouMultiple scattering and waves in random media : proceedings of the U.S. Army Workshop held in Blacksburg, Virginia, 24-26 March 1980 / ed. by P.L. Chow, W.E. Kohler, George Papanicolaou