تقرير
Recognising elliptic manifolds
| العنوان: | Recognising elliptic manifolds |
|---|---|
| المؤلفون: | Lackenby, Marc, Schleimer, Saul |
| سنة النشر: | 2022 |
| المجموعة: | Mathematics |
| مصطلحات موضوعية: | Mathematics - Geometric Topology, 57-08, 57K30, 57K35, 57Q15, 68Q25 |
| الوصف: | We show that the problem of deciding whether a closed three-manifold admits an elliptic structure lies in NP. Furthermore, determining the homeomorphism type of an elliptic manifold lies in the complexity class FNP. These are both consequences of the following result. Suppose that M is a lens space which is neither RP^3 nor a prism manifold. Suppose that T is a triangulation of M. Then there is a loop, in the one-skeleton of the 86th iterated barycentric subdivision of T, whose simplicial neighbourhood is a Heegaard solid torus for M. Comment: 33 pages, 4 figures, v2 - additional references, minor changes to exposition |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2205.08802 |
| رقم الأكسشن: | edsarx.2205.08802 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |