Adham Mohammed Student (Ph.D.), GERAD share Concordia University Education since Jan 2021 Ph.D. Nest decomposition schemes for optical network provisioning problems Concordia University – Department of Computer Science and Software Engineering, Brigitte Jaumard, director Sep 2018 – Dec 2020 Master's degree Large-scale modeling and optimization of routing, modulation and spectrum assignment problems in optical networks Concordia University – Department of Mechanical, Industrial and Aerospace Engineering, Brigitte Jaumard, director Publications Sep 2021 Nested Column Generation Algorithm for the Routing and Spectrum Assignment Problem in Flexgrid Optical Networks Adham Mohammed and Brigitte Jaumard 2021 IEEE Canadian Conference on Electrical and Computer Engineering (CCECE), ON, Canada, 2021 BibTeX reference