activity
20052021
most citedThere are no realizable 15_4- and 16_4-configurations

11 citations · 28 across the 6 of their papers we have counts for

collaborators

7 papers

math.OC2021★ 3 cited

Robust Market Equilibria under Uncertain Cost

Christian Biefel, Frauke Liers, Jan Rolfes +2

This work studies equilibrium problems under uncertainty where firms maximize their profits in a robust way when selling their output. Robust optimization plays an increasingly imp…

math.OC2019

Penalty alternating direction methods for mixed-integer optimal control with combinatorial constraints

Simone Göttlich, Falk M. Hante, Andreas Potschka +1

We consider mixed-integer optimal control problems with combinatorial constraints that couple over time such as minimum dwell times. We analyze a lifting and decomposition approach…

math.OC2017

Penalty Alternating Direction Methods for Mixed-Integer Optimization: A New View on Feasibility Pumps

Björn Geißler, Antonio Morsi, Lars Schewe +1

Feasibility pumps are highly effective primal heuristics for mixed-integer linear and nonlinear optimization. However, despite their success in practice there are only few works co…

math.CO2009

More bounds on the diameters of convex polytopes

David Bremner, Antoine Deza, William Hua +1

Finding a good bound on the maximal edge diameter of a polytope in terms of its dimension and the number of its facets is one of the basic open questions in polyto…

math.CO2008★ 10 cited

Edge-Graph Diameter Bounds for Convex Polytopes with Few Facets

David Bremner, Lars Schewe

We show that the edge graph of a 6-dimensional polytope with 12 facets has diameter at most 6, thus verifying the d-step conjecture of Klee and Walkup in the case of d=6. This impl…

math.MG2008★ 4 cited

Non-Realizable Minimal Vertex Triangulations of Surfaces: Showing Non-Realizability using Oriented Matroids and Satisfiability Solvers

Lars Schewe

We show that no minimal vertex triangulation of a closed, connected, orientable 2-manifold of genus 6 admits a polyhedral embedding in R^3. We also provide examples of minimal vert…