The minimal numbers of singularities of stable maps between surfaces

The minimal numbers of singularities of stable maps between surfaces
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表面之间稳定映射的奇异点的最少数量

DOI:
10.1016/j.topol.2009.06.010
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发表时间:
2009
影响因子:
0.6
通讯作者:
A.Kamenosono and T.Yamamoto
A.Kamenosono and T.Yamamoto
中科院分区:
数学4区
文献类型:
--
作者:
Akira Sakai;Lung-Chi Chen;山本稔;A.Kamenosono and T.Yamamoto

文献摘要

相似文献

设闭连通曲面M到球面的C∞稳定映射φ:M→ S2,c(φ),i(φ),n(φ)分别表示尖点,折叠曲线分量和节点数.在本文中,我们将在一个给定的同伦类中,确定关于字典序的最小对(i,c+n)。
For a C∞stable map φ:M→S2of a closed and connected surface M into the sphere, let c(φ), i(φ) and n(φ) denote the numbers of cusps, fold curves components and nodes respectively. In this paper, in a given homotopy class, we will determine the minimal pair (i,c+n) with respect to the lexicographic order.