Abstract
This note is a reaction to the recent paper by Rouhani and Moradi (J Optim Theory Appl 172:222–235, 2017), where a proximal point algorithm proposed by Boikanyo and Moroşanu (Optim Lett 7:415–420, 2013) is discussed. Noticing the inappropriate formulation of that algorithm, we propose a more general algorithm for approximating zeros of a maximal monotone operator on a Hilbert space. Besides the main result on the strong convergence of the sequences generated by this new algorithm, we discuss some particular cases, including the approximation of minimizers of convex functionals and present two examples to illustrate the applicability of the algorithm. The note clarifies and extends both the papers quoted above.
Similar content being viewed by others
References
Martinet, B.: Régularisation d’inéquations variationnelles par approximations succesives. Rev. Française Inform. Rech. Opér. 4(R3), 154–158 (1970)
Rockafellar, R.T.: Monotone operators and the proximal point algorithm. SIAM J. Control Optim. 14, 877–898 (1976)
Güler, O.: On the convergence of the proximal point algorithm for convex minimization. SIAM J. Control Optim. 29, 403–419 (1991)
Lehdili, N., Moudafi, A.: Combining the proximal algorithm and Tikhonov regularization. Optimization 37, 239–252 (1996)
Xu, H.K.: A regularization method for the proximal point algorithm. J. Glob. Optim. 36, 115–125 (2006)
Wang, F., Cui, H.: On the contraction-proximal point algorithms with multi-parameters. J. Glob. Optim. 54, 485–491 (2012)
Boikanyo, O.A., Moroşanu, G.: Strong convergence of a proximal point algorithm with bounded error sequence. Optim. Lett. 7, 415–420 (2013)
Rouhani, B.D., Moradi, S.: Strong convergence of two proximal point algorithms with possible unbounded error sequences. J. Optim. Theory Appl. 172, 222–235 (2017)
Brezis, H.: Opérateurs Maximaux Monotones et Semi-Groupes de Contractions dans les Espaces de Hilbert. North Holland Mathematical Studies, vol. 5. North Holland, Amsterdam (1973)
Moroşanu, G.: Nonlinear Evolution Equations and Applications. Reidel, Dordrecht (1988)
Bruck Jr., R.E.: A strongly convergent iterative solution of \(0\in U(x)\) for a maximal monotone operator \(U\) in Hilbert space. J. Math. Anal. Appl. 48, 114–126 (1974)
Moroşanu, G.: Asymptotic behaviour of resolvent for a monotone mapping in a Hilbert space. Atti Accad. Naz. Lincei Rend. Cl. Sci. Fis. Mat. Nat. 61, 565–570 (1977)
Acknowledgements
Many thanks are due to the editor and reviewers for comments and useful suggestions.
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Moroşanu, G., Petruşel, A. A Proximal Point Algorithm Revisited and Extended. J Optim Theory Appl 182, 1120–1129 (2019). https://doi.org/10.1007/s10957-019-01536-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10957-019-01536-5