Determining the Trisection Genus of Orientable and Non-Orientable PL 4-Manifolds through Triangulations
Determining the Trisection Genus of Orientable and Non-Orientable PL 4-Manifolds through Triangulations
复制标题
通过三角测量确定可定向和不可定向 PL 4-流形的三等分亏格
DOI:
10.1080/10586458.2020.1723744
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发表时间:
2017
影响因子:
0.5
通讯作者:
Stephan Tillmann
中科院分区:
文献类型:
--
作者:
J. Spreer;Stephan Tillmann
Abstract Gay and Kirby recently introduced the concept of a trisection for arbitrary smooth, oriented closed 4-manifolds, and with it a new topological invariant, called the trisection genus. This paper improves and implements an algorithm due to Bell, Hass, Rubinstein and Tillmann to compute trisections using triangulations, and extends it to non-orientable 4–manifolds. Lower bounds on trisection genus are given in terms of Betti numbers and used to determine the trisection genus of all standard simply connected PL 4-manifolds. In addition, we construct trisections of small genus directly from the simplicial structure of triangulations using the Budney-Burton census of closed triangulated 4-manifolds. These experiments include the construction of minimal genus trisections of the non-orientable 4-manifolds and
DOI:
--
发表时间:
2018-09
期刊:
arXiv: Geometric Topology
影响因子:
--
作者:
Michelle Chu;Stephan Tillmann
通讯作者:
Michelle Chu;Stephan Tillmann
DOI:
10.1073/pnas.1717173115
发表时间:
2018
期刊:
Proceedings of the National Academy of Sciences
影响因子:
--
作者:
Bell, Mark;Hass, Joel;Rubinstein, Joachim Hyam;Tillmann, Stephan
通讯作者:
Tillmann, Stephan