| Project/Area Number |
21540069
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Geometry
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| Research Institution | Chiba University |
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Principal Investigator |
KUGA Ken-ichi 千葉大学, 理学(系)研究科(研究院), 教授 (30186374)
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| Co-Investigator(Kenkyū-buntansha) |
INABA Takashi 千葉大学, 大学院理学研究科, 教授 (40125901)
SUGIYAMA Ken-ichi 千葉大学, 大学院理学研究科, 教授 (90206441)
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| Project Period (FY) |
2009-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Keywords | 低次元位相不変量 / 双曲体積 / 低次元多様体 / コバノフホモロジー / 4次元多様体 / リッチ流 / Ricci流 / 微分トポロジー / 低次元トポロジー / 位相不変量 / ペレルマン不変量 |
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| Research Abstract |
We investigated the possibility of applying the technique of Hamilton's Ricci flow to the understanding of the topology of 4 dimensional manifolds, or more generally, to the understanding of various topological invariants in low-dimensional topology. While in dimension three, the formation of singularities is well understood due to the works of Hamilton and Perelman,in dimension 4, the singularity seems unstable with respect to the initial metiric, which eventually prevented our systematic understanding of the formation in dimension 4 during this period of study. Some peripheral computation concerning Khovanov homology of some links were performed.
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