هندسه دیفرانسیل: معادلات دیفرانسیل جزئی بر روی منیفولدها، بخش ۱

'Proceedings of the Summer Research Institute on Differential Geometry, held at the University of California, Los Angeles, July 8-28, 1990'--T.p. verso. The first of three parts comprising Volume 54, the proceedings of the Summer Research Institute on Differential Geometry, held at the University of California, Los Angeles, July 1990 (ISBN for the set is 0-8218-1493-1). Part 1 begins with a problem list by S.T. Yau, successor to his 1980 list ( Sem pt. 1. Partial differential equations on manifolds pt. 2. Geometry in mathematical physics and related topics pt. 3. Riemannian geometry.