Every non-Euclidean oriented matroid admits a biquadratic final polynomial
Fukuda, Komei ; Moriyama, Sonoko ; Nakayama, Hiroki ; Richter-Gebert, Jürgen
In: Combinatorica, 2009, vol. 29, no. 6, p. 691-698
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- Richter-Gebert proved that every non-Euclidean uniform oriented matroid admits a biquadratic final polynomial. We extend this result to the non-uniform case