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- Michael Joswig, Marc E. Pfetsch
- SIAM J. Discrete Math.
- 2006

Morse matchings capture the essential structural information of discrete Morse functions. We show that computing optimal Morse matchings is NP-hard and give an integer programming formulation for the… (More)

- Michael Joswig, Günter M. Ziegler
- Discrete & Computational Geometry
- 2000

Neighborly cubical polytopes exist: for any n ≥ d ≥ 2r + 2, there is a cubical convex d-polytope C d whose r-skeleton is combinatorially equivalent to that of the n-dimensional cube. This solves a… (More)

- Marion A. Hofmann, Stephan Schiekofer, +15 authors Peter P Nawroth
- Diabetologia
- 1999

Increased oxidative stress and subsequent activation of the transcription factor NF-kB has been linked to the development of late diabetic complications. To determine whether oxidative stress… (More)

We prove that the neighborly cubical polytopes studied by Günter M. Ziegler and the first named author [14] arise as a special case of the neighborly cubical spheres constructed by Babson, Billera,… (More)

- Marion A. Hofmann, Stephan Schiekofer, +9 authors Peter P Nawroth
- Diabetes care
- 1998

OBJECTIVE
The redox-sensitive transcription factor nuclear factor-kappa B (NF-kappa B) is believed to contribute to late diabetic complications. It is unknown whether NF-kappa B is influenced by… (More)

- Richard Bödi, Katrin Herr, Michael Joswig
- Math. Program.
- 2013

This paper deals with exploiting symmetry for solving linear and integer programming problems. Basic properties of linear representations of finite groups can be used to reduce symmetric linear… (More)

- Michael Joswig
- 2009

For each strongly connected finite-dimensional (pure) simplicial complex ∆ we construct a finite group Π(∆), the group of projectivities of ∆, which is a combinatorial but not a topological invariant… (More)

A canonical branched covering over each su‰ciently good simplicial complex is constructed. Its structure depends on the combinatorial type of the complex. In this way, each closed orientable… (More)

- Michael Joswig, Marc E. Pfetsch
- CTW
- 2004

- Michael Joswig, Frank H. Lutz
- J. Comb. Theory, Ser. A
- 2005

A. It is known that the suspension of a simplicial complex can b e realized with only one additional point. Suitable iterations of this construction generate highly s ymmetric simplicial… (More)