Retirement of Professor V. Lakshmikantham, Editor-in-Chief As of 1st January 2011, Professor V. Lakshmikantham retired from his role as Editor-in-Chief of Nonlinear Analysis: Theory, Methods & Applications. Since its inception, twenty five years ago, Professor Lakshmikantham has been synonymous with the journal, that has grown from six to twelve issues per year, and its readership and influence in the community has increased steadily. I would like to take this opportunity to thank Professor Lakshmikantham for his expertise and diligence and convey the best of wishes for his future from his colleagues on the journal, both from the members of the Editorial Board, and from all the staff at Elsevier. I would also like to announce, to coincide with his retirement, that Professor Laksmikantham will become Founding and Honorary Editor, a position that properly befits his immense contribution to the journal. Though I am sorry to see Professor Laksmikantham go, I am delighted that Ravi Agarwal, Shair Ahmad, Siegfried Carl and Enzo Mitidieri will continue as co-Editors of Nonlinear Analysis: Theory, Methods & Applications and shall be responsible for its contents, as of Volume 74. Elena Griniari Publisher
0362-546X/$ – see front matter doi:10.1016/j.na.2011.02.015