RT Journal Article T1 Almost classical solutions of Hamilton-Jacobi equations A1 Deville, Robert A1 Jaramillo Aguado, Jesús Ángel AB We study the existence of everywhere differentiable functions which are almost everywhere solutions of quite general Hamilton-Jacobi equations on open subsets of R(d) or on d-dimensional manifolds whenever d >= 2. In particular, when M is a Riemannian manifold, we prove the existence of a differentiable function a on M which satisfies the Eikonal equation parallel to del u(x)parallel to(x) = 1 almost everywhere on M. PB Univ Autónoma Madrid SN 0213-2230 YR 2008 FD 2008 LK https://hdl.handle.net/20.500.14352/50121 UL https://hdl.handle.net/20.500.14352/50121 LA eng NO Ministerio de Ciencia e Innovación (MICINN) DS Docta Complutense RD 10 abr 2025