R Rossi,
G Savaré - ESAIM: Control, Optimisation and Calculus of …, 2006 - cambridge.org
This paper addresses the Cauchy problem for the gradient flow equation in a Hilbert
space\[\begin {cases} u'(t)+\partial_ {\ell}\phi (u (t))\ni f (t) &\text {{\it ae}\in}(0, T), u (0) …