proximal_const_func

odl.solvers.nonsmooth.proximal_operators.proximal_const_func(space)[source]

Proximal operator factory of the constant functional.

Function to initialize the proximal operator of the constant functional defined on space.

Parameters

The constant functional $G$ is defind as $G(x) = constant$ for all values of $x$ . The proximal operator of this functional is the identity operator

$\mathrm{prox}_{\sigma G}(x) = x$

Note that it is independent of $\sigma$ .