Primal-dual splitting algorithm for solving inclusions with mixtures of composite, Lipschitzian, and parallel-sum type monotone operators

Patrick Louis Combettes (1) , Jean-Christophe Pesquet (2)

1 LJLL - Laboratoire Jacques-Louis Lions
2 LIGM - Laboratoire d'Informatique Gaspard-Monge

We propose a primal-dual splitting algorithm for solving monotone inclusions involving a mixture of sums, linear compositions, and parallel sums of set-valued and Lipschitzian operators. An important feature of the algorithm is that the Lipschitzian operators present in the formulation can be processed individually via explicit steps, while the set-valued operators are processed individually via their resolvents. In addition, the algorithm is highly parallel in that most of its steps can be executed simultaneously. This work brings together and notably extends various types of structured monotone inclusion problems and their solution methods. The application to convex minimization problems is given special attention.

Domains: Optimization and Control [math.OC]

Patrick Louis Combettes, Jean-Christophe Pesquet. Primal-dual splitting algorithm for solving inclusions with mixtures of composite, Lipschitzian, and parallel-sum type monotone operators. Set-Valued and Variational Analysis, 2012, 20 (2), pp.307-330. ⟨10.1007/s11228-011-0191-y⟩. ⟨hal-00794044⟩