Dear Colleagues,

It is our pleasure to announce that the following two papers shared the 2017 OPTL Best Paper Award:

Fani Boukouvala, Christodoulos A. Floudas (2017), ARGONAUT: AlgoRithms for Global Optimization of coNstrAined grey-box compUTational problems, Optimization Letters 11(5), 895–913.

Etienne de Klerk, François Glineur, Adrien B. Taylor (2017), On the worst-case complexity of the gradient method with exact line search for smooth strongly convex functions, Optimization Letters 11(7), 1185–1199.

The OPTL Best Paper Award carries a 1000 USD prize shared between the winners and a plaque. This year the Best Paper Award Selection Committee included OPTL Editorial Board members Dr. Boris Mordukhovich, Dr. Jean-Philippe Richard, Dr. Monica Gentili, and the Founding Editor-In-Chief, Dr. Panos Pardalos. We want to thank the members of the Committee for their service and Springer for sponsoring the award.

In addition, the following paper received an honorable mention:

Xingyin Wang, Stefan Poikonen, Bruce Golden, The vehicle routing problem with drones: several worst-case results, Optimization Letters 11(4), 679–697.

Please join us in congratulating the authors of all three papers for their excellent contribution to literature!

Finally, we also would like to take this opportunity to invite nominations for the 2018 OPTL Best Paper Award. All papers published in OPTL during the year of 2018 are eligible.