| Project/Area Number |
23740064
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Geometry
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| Research Institution | Osaka City University (2012-2013)
Kinki University (2011) |
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Principal Investigator |
AKIYOSHI Hirotaka 大阪市立大学, 理学(系)研究科(研究院), 准教授 (80397611)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | 双曲幾何 / クライン群 / リーマン面 / ３次元多様体 / 錐双曲構造 / トポロジー / 錐多様体 |
|---|
| Research Abstract |
The space of complete cone hyperbolic structures on the 3-dimensional cone manifold obtained as the product of the torus with a single cone point and the interval has been studied, where a conjecture of Akiyoshi and Yamashita, which expects a certain relation between geometry and algebra, has been focused on. The following facts has been revealed: (1) The conjecture is true on the subspace consisting of real representations. (2) The simple loops are realized by geodesics for the cone hyperbolic structure associated with "good fundamental polyhedron". Moreover, certain bound on the lengths of geodesics are found. (3) The notion of Ford domain is generalized to the complete cone hyperbolic structures containing a "standard horospherical neighborhood", and the good fundamental polyhedra are shown to be the Ford domains.
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