The toric ideal of a graphic matroid is generated by quadrics

The toric ideal of a graphic matroid is generated by quadrics
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图形拟阵的复曲面理想由二次曲面生成

DOI:
10.1007/s00493-008-2256-6
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发表时间:
2005
期刊:
影响因子:
1.1
通讯作者:
J. Blasiak
J. Blasiak
中科院分区:
数学2区
文献类型:
--
作者:
J. Blasiak

文献摘要

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相似文献

环面理想的极小生成元集的刻画是一个研究得很好的难题。Neil白色在1980年推测,与拟阵相关的复曲面理想是由对应于单元素对称交换的二次曲面生成的。给出了图拟阵的白色猜想的一个组合证明.
Describing minimal generating sets of toric ideals is a well-studied and difficult problem. Neil White conjectured in 1980 that the toric ideal associated to a matroid is generated by quadrics corresponding to single element symmetric exchanges. We give a combinatorial proof of White’s conjecture for graphic matroids.