proximal_linfty

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

Proximal operator factory of the l_\infty-norm.

Function for the proximal operator of the functional F where F is the l_\infty-norm:

``F(x) =  \sup_i |x_i|``

Parameters

spaceLinearSpace: Domain of F.

Returns

prox_factorycallable: Factory for the proximal operator to be initialized.

Notes

The proximal is computed by the Moreau identity and a projection onto an l1-ball [PB2014].

See Also

proj_l1 : projection onto l1-ball