BRANCHED SHADOWS AND COMPLEX STRUCTURES ON 4-MANIFOLDS

BRANCHED SHADOWS AND COMPLEX STRUCTURES ON 4-MANIFOLDS
复制标题

4 流形上的分支阴影和复杂结构

DOI:
10.1142/s0218216508006683
复制
发表时间:
2005
影响因子:
0.5
通讯作者:
F. Costantino
F. Costantino
中科院分区:
数学4区
文献类型:
--
作者:
F. Costantino

文献摘要

被引文献

相似文献

我们将 4 流形的分支阴影定义并研究为 3 流形的分支脊柱和图拉耶夫阴影的组合。我们使用这些对象来组合表示配备有 Spinc 结构和几乎复杂结构的同伦类的 4 流形。然后,我们使用分支阴影来研究复杂的 4 流形,并证明 4 维手柄上的每个几乎复杂的结构都与复杂的结构同伦。
We define and study branched shadows of 4-manifolds as a combination of branched spines of 3-manifolds and of Turaev's shadows. We use these objects to combinatorially represent 4-manifolds equipped with Spinc-structures and homotopy classes of almost complex structures. We then use branched shadows to study complex 4-manifolds and prove that each almost complex structure on a 4-dimensional handlebody is homotopic to a complex one.