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arXiv math/0009234math.GTmath.AT
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4-流形中的对偶2-复形

Dual 2-complexes in 4-manifolds

Frank Quinn

摘要:

研究光滑四维流形作为两个带指数<=2的柄的双曲体的并集的分解("Heegard“分解).示例结果:两个2-复形是四维球面的Heegard分解的对偶样条当且仅当它们满足Alexander-Lefshetz对偶定理的结论($H_1K\simeq H^2L$和$H_2K\simeq H^1L$).

英文摘要:

Concerns decompositions of smooth 4-manifolds as the union of two handlebodies, each with handles of index <=2 (``Heegard'' decompositions).Sample result: Two 2-complexes are (up to 2-deformation) dual spines of a Heegard decomposition of the 4-sphere if and only if they satisfy the conclusions of the Alexander-Lefshetz duality theorem ($H_1K\simeq H^2L$ and $H_2K\simeq H^1L$).

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