Overtwisted open books from sobering arcs
Overtwisted open books from sobering arcs
复制标题
从发人深省的弧线过度扭曲打开的书
DOI:
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发表时间:
2004
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通讯作者:
N. Goodman
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文献类型:
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作者:
N. Goodman
We study open books on three manifolds which are compat- ible with an overtwisted contact structure. We show that the existence of certain arcs, called sobering arcs, is a sufficient condition for an open book to be overtwisted, and is necessary up to stabilization by positive Hopf-bands. Using these techniques we prove that some open books arising as the boundary of symplectic configurations are overtwisted, answering a question of Gay in (9). AMS Classification 57R17; 57M99