Trudinger, Neil S.; Wang, Xu-Jia On the second boundary value problem for Monge-Ampère type equations and optimal transportation. (English) Zbl 1182.35134 Ann. Sc. Norm. Super. Pisa, Cl. Sci. (5) 8, No. 1, 143-174 (2009). The paper is concerned with the existence of globally smooth solutions for the second boundary value problem for the Monge-Ampère equation \[ \text{det}\{D^2u -A(\cdot,u,Du\}=B(\cdot,u,Du) \]and the application to regularity of potentials in optimal transportation. In particular, there are determined conditions on costs and domains to ensure that optimal mappings are smooth diffeomorphisms. The authors resolve, in the context of global regularity, the fundamental problem of regularity for more general costs than the quadratic costs. The approach is through the derivation of global estimates for second derivatives of solutions. Reviewer: Lubomira Softova (Aversa) Cited in 4 ReviewsCited in 77 Documents MSC: 35J96 Monge-Ampère equations 35J25 Boundary value problems for second-order elliptic equations 35B65 Smoothness and regularity of solutions to PDEs 49K20 Optimality conditions for problems involving partial differential equations Keywords:Monge-Ampére type equation; optimal transportation; global regularity PDFBibTeX XMLCite \textit{N. S. Trudinger} and \textit{X.-J. Wang}, Ann. Sc. Norm. Super. Pisa, Cl. Sci. (5) 8, No. 1, 143--174 (2009; Zbl 1182.35134) Full Text: DOI arXiv