Special issues of scientific journals

. L. Calatroni, S. Rebegoldi, V. Ruggiero, Special issue on optimization and learning methods for inverse problems in microscopy: in memory of Mario Bertero, Inverse Problems, 40, 8. 080201 (2024), 10.1088/1361-6420/ad575d

 . G. Casciola, V. Ruggiero, Editorial: Special issue mathematical methods and numerical computations in honor of Ilio Galligani.  Ann. Univ. Ferrara 68, 239–241 (2022). https://doi.org/10.1007/s11565-022-00446-1

. V. Ruggiero, G. Toraldo, Special issue for SIMAI 2020–2021: large-scale optimization and applications, Comput. Optim. Appl. (2022), https://doi.org/10.1007/s10589-022-00436-1

. V. Ruggiero, G. Toraldo, Introduction to the special issue for SIMAI 2016, Comput. Optim. Appl. (2018), https://doi.org /10.1007/s10589-018-0019-x

· M. Bertero, V. Ruggiero, L. Zanni, Imaging 2013, Special Issue, Comput. Optim. Appl., 54, 211–213, DOI 10.1007/s10589-013-9536-9, (2013)

· R. Fletcher, V. Ruggiero, Y. D. Sergeyev, R. G. Strongin, Numerical Methods for Local and Global Optimization: Sequential and Parallel Algorithms, Special issue, Optimization Methods and Software, 4-5 (2005)

· V. Ruggiero, G. Zanghirati, Numerical Analysis: Methods and Mathematical Software, Annali dell'Università di Ferrara, Sezione VII, Scienze Matematiche, Proceedings of the National Congress "Numerical Analysis: Methods and Mathematical Software", (2000).