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Mediterr. j. math. 2 (2005), 437450 1660-5446/040437-14, DOI 10.1007/s00009-005-0056-4

Summary: Mediterr. j. math. 2 (2005), 437­450
1660-5446/040437-14, DOI 10.1007/s00009-005-0056-4
c 2005 Birkh¨auser Verlag Basel/Switzerland
Mediterranean Journal
of Mathematics
Proximal Calculus on Riemannian Manifolds
Daniel Azagra and Juan Ferrera
Abstract. We introduce a proximal subdifferential and develop a calculus for
nonsmooth functions defined on any Riemannian manifold M. We give some
applications of this theory, concerning, for instance, a Borwein-Preiss type
variational principle on a Riemannian manifold M, as well as differentiability
and geometrical properties of the distance function to a closed subset C of
Mathematics Subject Classification (2000). 49J52, 58E30, 58C30, 47H10.
Keywords. Proximal subdifferential, Riemannian manifold, variational princi-
ple, mean value theorem.
1. Introduction
The proximal subdifferential of lower semicontinuous real-valued functions is a
very powerful tool which has been extensively studied and used in problems of op-
timization, control theory, differential inclusions, Lyapunov Theory, stabilization,


Source: Azagra Rueda, Daniel - Facultad de Ciencias Matemáticas, Universidad Complutense de Madrid


Collections: Mathematics