Two interesting oriented matroids
type: Item
instance of: scholarly article
title: Two interesting oriented matroids
zbMATH Open document ID: 0852.05033
author: Jürgen Richter-Gebert
published in: Documenta Mathematica
publication date: 1996-07-07T00:00:00Z
full work available at URL: https://eudml.org/doc/223918
full work available at URL: 07.html
review text: Two oriented matroids of rank 3 with 14 elements, differing exactly in one base orientation, are constructed. One of them has a disconnected realization space, the other is non-realizable but has no biquadratic final polynomial (which would effectively prove its non-realizability).
reviewed by: András Recski
Mathematics Subject Classification ID: 05B35
Mathematics Subject Classification ID: 52C35
Mathematics Subject Classification ID: 52B40
Mathematics Subject Classification ID: 14P10
Mathematics Subject Classification ID: 51A25
zbMATH DE Number: 897862
zbMATH Keywords: oriented matroids
zbMATH Keywords: realization
MaRDI profile type: Publication
description: scientific article; zbMATH DE number 897862