Create README.md

Author: gcristinelli

README.md

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+# Galerkin-Conditional-Gradient
+
+This module solves the control problem with Total Variation regularization
+
+min_{u\in BV(\Omega)} 1/2 |Ku-y0|^2 + alpha TV(u,\Omega)
+
+where K is the control-to-state operator associated with a Poisson-type PDE.
+
+It uses the Dinkelbach-FCGCG approach described in the paper "Sparse optimization for discretized PDE-constrained problems with total variation regularization".
+
+Important libraries:
+
+FEniCS (Dolfin) --version 2019.1.0 (https://fenicsproject.org/) 
+Maxflow (http://pmneila.github.io/PyMaxflow/maxflow.html)