All Stories

  1. Equivariant Perturbation in Gomory and Johnson's Infinite Group Problem. I. The One-Dimensional Case

    Article • Mathematics of Operations Research, February 2015, INFORMS

    Dr Matthias Köppe

  2. s-Lecture hall partitions, self-reciprocal polynomials, and Gorenstein cones

    Article • The Ramanujan Journal, January 2014, Springer Science + Business Media

    Dr Matthias Köppe

  3. The triangle closure is a polyhedron

    Article • Mathematical Programming, February 2013, Springer Science + Business Media

    Dr Matthias Köppe

  4. A new Lenstra-type algorithm for quasiconvex polynomial integer minimization with complexity

    Article • Discrete Optimization, February 2013, Elsevier

    Dr Matthias Köppe

  5. Equivariant Perturbation in Gomory and Johnson’s Infinite Group Problem: II. The Unimodular Two-Dimensional Case

    Article • January 2013, Springer Science + Business Media

    Dr Matthias Köppe

  6. Algebraic and Geometric Ideas in the Theory of Discrete Optimization

    Article • December 2012, Society for Industrial & Applied Mathematics (SIAM)

    Dr Matthias Köppe

  7. Unique Minimal Liftings for Simplicial Polytopes

    Article • Mathematics of Operations Research, May 2012, INFORMS

    Dr Matthias Köppe

  8. Rational Generating Functions and Integer Programming Games

    Article • Operations Research, December 2011, INFORMS

    Dr Matthias Köppe, Maurice Queyranne

  9. On the Complexity of Nonlinear Mixed-Integer Optimization

    Article • November 2011, Springer Science + Business Media

    Dr Matthias Köppe

  10. A Polynomial-Time Algorithm for Optimizing over N-Fold 4-Block Decomposable Integer Programs

    Article • January 2010, Springer Science + Business Media

    Dr Matthias Köppe

  11. Nonlinear Integer Programming

    Article • November 2009, Springer Science + Business Media

    Dr Matthias Köppe

  12. Intermediate integer programming representations using value disjunctions

    Article • Discrete Optimization, May 2008, Elsevier

    Dr Matthias Köppe

  13. Integrally indecomposable polytopes and the survivable network design problem

    Article • October 2007, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Matthias Köppe

  14. A Primal Barvinok Algorithm Based on Irrational Decompositions

    Article • SIAM Journal on Discrete Mathematics, January 2007, Society for Industrial & Applied Mathematics (SIAM)

    Dr Matthias Köppe

  15. Nondecomposable solutions to group equations and an application to polyhedral combinatorics

    Article • 4OR, March 2006, Springer Science + Business Media

    Dr Matthias Köppe

  16. Extended formulations for Gomory Corner polyhedra

    Article • Discrete Optimization, November 2004, Elsevier

    Dr Matthias Köppe

  17. Cutting planes from a mixed integer Farkas lemma

    Article • Operations Research Letters, May 2004, Elsevier

    Dr Matthias Köppe

  18. A Primal Approach to the Stable Set Problem

    Article • January 2002, Springer Science + Business Media

    Dr Matthias Köppe

  19. On the Parameter Plane of Nonlinear Coupled Oscillators

    Article • Zeitschrift für Naturforschung A, January 1993, De Gruyter

    Dr Matthias Köppe