On the existence of periodic solutions to nonlinear abstract parabolic equations
The paper studies the existence of anti-periodic solutions of \(du(t)/dt+\partial \phi (u(t))\ni f(t)\) in a real Hilbert space. The function \(\phi\) is a proper lower semicontinuous convex function. The assumptions are distinct from coerciveness.
scientific article; zbMATH DE number 4113143