Jon-Shmuel Halfway to Twelfty July 4-7, 2023 École des Ponts, Marne-la-Vallée, France Program Tuesday July 4 9h30-10h Reception/Coffee and cookies 10h-12h Chair: Katya Scheinberg (Cornell University) On Quantum Interior Point Methods for Linear and Semidefinite Optimization Tamás Terlaky (Lehigh University) Piecewise convex quadratic under-estimators for quadratic optimization problems Amélie Lambert (Conservatoire National des Arts et Métiers) Strengthening MIP formulations of Hybrid Model Predictive Control Alper Atamtürk (University of California, Berkeley) Revisiting von Neumann's algorithm: Alternating Linear Minimizations Sebastian Pokutta (Zuse Institute Berlin / TU Berlin) 12h-13h30 Lunch break 13h30-15h Chair: Samuel Fiorini (Université libre de Bruxelles) From the Kneser-Poulsen conjecture to r-ball bodies Károly Bezdek (University of Calgary) The Subspace Flatness Conjecture and Faster Integer Programming Thomas Rothvoss (University of Washington) The Power of Adaptivity for Stochastic Submodular Cover Viswanath Nagarajan (University of Michigan) 15h-15h30 Coffee break 15h30-17h Chair: Tamás Terlaky (Lehigh University) Design of Poisoning Attacks on Linear Regression Using Bilevel Optimization Miguel Anjos (University of Edinburgh) Searching for Hypergraphs using Reinforcement Learning Tamon Stephen (Simon Fraser University) An Update-and-Stabilize Framework for the Minimum-Norm-Point Problem László Végh (London School of Economics) Wednesday July 5 9h30-10h Coffee and cookies 10h-12h Chair: Sebastian Pokutta (Zuse Institute Berlin / TU Berlin) Fairness in Resource Allocation Swati Gupta (MIT) Submodular functions -- Maximization and Polyhedra Akshay Gupte (University of Edinburgh) Random projections for linear programming: some improvements Leo Liberti (CNRS & École Polytechnique) Convergence Guarantees of a Distributed Network Equivalence Algorithm for Distribution-OPF Bala Krishnamoorthy (Washington State University) 12h-13h30 Lunch break 13h30-15h Chair: Swati Gupta (MIT) Integer points in the degree-sequence polytope Friedrich Eisenbrand (École Polytechnique Fédérale de Lausanne) Complexity of Finding Local Minima in Polynomial Optimization Amirali Ahmadi (Princeton University) On the generalized Lovász theta number and related problems for highly symmetric graphs Renata Sotirov (Tilburg University) 15h-15h30 Coffee break 15h30-17h Chair: Alper Atamtürk (University of California, Berkeley) Warehouse problem with bounds, fixed costs, multiple vendors and complementarity constraints Oktay Günlük (Cornell University) Optimizing for Equity in Facility Location (Part I) Daphne Skipper (United States Naval Academy) Optimizing for Equity in Facility Location (Part II) Emily Speakman (University of Colorado Denver) Thursday July 6 9h30-10h Coffee and cookies 10h-12h Chair: Oktay Günlük (Cornell University) Jon, Shmuel, me and the Cost of Certifying the (Mathematical) Truth Jesús De Loera (University of California, Davis) #227 Jon Lee (University of Michigan) Some History and Some Math Shmuel Onn (Technion) Oriented Matroids and Memories of Cornell SORIE Walter Morris (George Mason University) 12h-13h30 Lunch break 13h30-15h Chair: Carla Michini (University of Wisconsin-Madison) The maximum-entropy sampling problem Marcia Fampa (Universidade Federal do Rio de Janeiro) Optimal retrieval in puzzle-based storage systems using automated mobile robots Tal Raviv (Tel Aviv University) Solid angle measure of polyhedral cones in arbitrary dimension Yuan Zhou (University of Kentucky) 18h-20h Museum 20h- Conference dinner Friday July 7 9h30-10h Coffee and cookies 10h-12h Chair: Jesús De Loera (University of California, Davis) Tropical geometry for optimization Michael Joswig (Technische Universität Berlin) Ambitropical convexity, injective hulls of metric spaces, and mean-payoff games Stéphane Gaubert (INRIA & École Polytechnique) Inefficiency of pure Nash equilibria in network congestion games: the impact of symmetry and graph structure Carla Michini (University of Wisconsin-Madison) A smoothing-based decomposition for nonlinear nonconvex two-stage optimization Andreas Waechter (Northwestern University) 12h-13h30 Lunch break 13h30-15h Chair: Marcia Fampa (Universidade Federal do Rio de Janeiro) (Integer bilevel nonlinear programs) + (SOCP-based disjunctive cuts) = (fun with Jon) Elisabeth Gaar (University of Augsburg) Kissing Polytopes Lionel Pournin (Université Paris 13) Approximating ILP core points with nonlinear constraints David Bremner (University of New Brunswick) 15h-15h30 Farewell drink