The Computational Complexity of Knot Genus and Spanning Area
The Computational Complexity of Knot Genus and Spanning Area
复制标题
结属和跨越面积的计算复杂度
DOI:
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发表时间:
2002
期刊:
影响因子:
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通讯作者:
W. Thurston
中科院分区:
文献类型:
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作者:
I. Agol;J. Hass;W. Thurston
We investigate the computational complexity of some problems in three-dimensional
topology and geometry. We show that the problem of determining a bound on the genus of a
knot in a 3-manifold, is NP-complete. Using similar ideas, we show that deciding whether a
curve in a metrized PL 3-manifold bounds a surface of area less than a given constant C is
NP-hard.