Smooth approximation of Lipschitz functions on Riemannian manifolds

A remark on regularization in Hilbert spaces

Jean‐Michel Lasry, P. L. Lions · Israel Journal of Mathematics · 1986 · 274 citations

Natural Sciences, Computer Science, Representation Theory +9

Nonsmooth analysis and Hamilton–Jacobi equations on Riemannian manifolds

Daniel Azagra, Juan Ferrera, Fernando López-Mesas · Journal of Functional Analysis · 2004 · 155 citations

Natural Sciences, Mathematics, Physics +13

C∞ convex functions and manifolds of positive curvature

Robert E. Greene, H. Wu · Acta Mathematica · 1976 · 154 citations · Full text

Natural Sciences, Mathematics, Relativity +13

A Smooth Variational Principle with Applications to Hamilton-Jacobi Equations in Infinite Dimensions

Robert Deville, G. Godefroy, Václav Zizler · Journal of Functional Analysis · 1993 · 123 citations

Natural Sciences, Mathematics, Physics +16

Algebras of differentiable functions

S. B. Myers · Proceedings of the American Mathematical Society · 1954 · 26 citations

Natural Sciences, Mathematics, Algebra +8