2021 Fiscal Year Annual Research Report
随伴形式とspherical多様体の超曲面のトレリ型問題
| Project/Area Number |
19F19780
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| Research Institution | The University of Tokyo |
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Principal Investigator |
小木曽 啓示 東京大学, 大学院数理科学研究科, 教授 (40224133)
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| Co-Investigator(Kenkyū-buntansha) |
RIZZI LUCA 東京大学, 数理(科)学研究科(研究院), 外国人特別研究員
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| Project Period (FY) |
2019-11-08 – 2022-03-31
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| Keywords | Torelli problem / semi-stable fibration / local system / Fujita decomposition |
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| Outline of Annual Research Achievements |
Doctor Luca Rizzi has worked on hypersurfaces in special subclasses of spherical varieties. In particular Doctor Rizzi has proved the explicit equivalence between the theory of Massey products and the theory of the infinitesimal Torelli problem for smooth hypersurfaces in rational homogeneous varieties with Picard number one. In the same paper Doctor Rizzi has also been able to prove an infinitesimal Torelli theorem for smooth hypersurfaces in log-parallelizable varieties.
Doctor Rizzi has also worked on semistable fibrations of projective varieties and studied the monodromy associated to local systems of relative differential forms. Doctor Rizzi has given conditions on the finiteness of this monodromy. This is related to semi-ampleness problems and to an important conjecture by Fujita.
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| Research Progress Status |
令和3年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
令和3年度が最終年度であるため、記入しない。
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