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arXiv 0910.3019math.GT
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压缩体中某些图的Heegaard曲面

Heegaard surfaces for certain graphs in compressionbodies

Scott A. Taylor, Maggy Tomova

摘要:

设M是包含图T(至少有一条边)的压缩体,使得\boundary_+ M平行于T和\boundary_- M的并集.本文将Hayashi和Shimokawa的方法推广到T.本文的结果在以后的工作中使用,以表明,如果一个3-流形中的图的桥表面是c-弱可约的,那么要么发生退化的情况,或外部的图包含一个本质的双曲曲面。

英文摘要:

Let M be a compressionbody containing a graph T (with at least one edge) such that \boundary_+ M is parallel to the union of T and \boundary_- M. We extend methods of Hayashi and Shimokawa to classify bridge surfaces for T. The results of this paper are used in later work to show that if a bridge surface for a graph in a 3-manifold is c-weakly reducible then either a degenerate situation occurs or the exterior of the graph contains an essential meridional surface.

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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