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arXiv math/0501140math.GT
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交错Heegaard亏格界距离

Alternate Heegaard genus bounds distance

Martin Scharlemann, Maggy Tomova

摘要:

设M是一个紧的可定向不可约3-流形,其Heegaard分裂曲面P和Q。那么,要么Q与P的可能稳定拷贝是同位素的,要么分裂P的亨佩尔距离不大于Q亏格的两倍。更一般地,如果P和Q是M中的双可压缩但弱不可压缩的连通闭分离曲面,则a)P和Q可以很好地分离,或者b)P和Q是同位素的,或者c)P的亨佩尔距离不大于Q亏格的两倍。

英文摘要:

Suppose M is a compact orientable irreducible 3-manifold with Heegaard splitting surfaces P and Q. Then either Q is isotopic to a possibly stabilized copy of P or the Hempel distance of the splitting P is no greater than twice the genus of Q. More generally, if P and Q are bicompressible but weakly incompressible connected closed separating surfaces in M then either a) P and Q can be well-separated or b) P and Q are isotopic or c) the Hempel distance of P is no greater than twice the genus of Q.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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