Research of surfaces in four-dimensional Riemannian manifolds using their twistor lifts
Project/Area Number |
20740046
|
Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Geometry
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Research Institution | Kanazawa University (2009-2011) Tokyo University of Science (2008) |
Principal Investigator |
HASEGAWA Kazuyuki Kanazawa University, 学校教育系, 准教授 (50349825)
|
Project Period (FY) |
2008 – 2010
|
Project Status |
Completed (Fiscal Year 2011)
|
Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
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)
Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
Keywords | ツイスター空間 / ツイスターリフト / 調和切断 |
Research Abstract |
We classify surfaces of genus zero in self-dual Einstein manifolds whose twistor lifts are harmonic sections. Using this result, we obtain a classification for the quotient space of the space of all twistor holomorphis surfaces by conformal transformations in the special case. Moreover we show that twsitor lifts of twistor holomorphic surfaces are weakly stable as harmonic sections if ambient spaces are self-dual Einstein manifolds of non-negative scalar curvature. Conversely, if the ambient space is Euclidean space, a surface whose twistor lift is a weakly stable harmonic section is twistor holomorphic.
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Report
(5 results)
Research Products
(21 results)