2012 Fiscal Year Final Research Report
Aspects of purely inseparable morphisms in algebraic geometry
| Project/Area Number |
22540039
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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 |
Algebra
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| Research Institution | Tohoku University |
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Principal Investigator |
HARA Nobuo 東北大学, 大学院・理学研究科, 准教授 (90298167)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 代数幾何 |
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| Research Abstract |
We studied Frobenius sandwich singularities and F-blowups of2-dimensional singularities, which are closely related to purely inseparable morphisms in algebraic geometry in positive characteristic. We obtained results on the following subjects: (1) Frobenius sandwich surface singularities whose F-blowup is not the minimal resolution; (2) F-blowups of F-regular surface singularities; (3) F-blowups of non-F-regular rational double points; (4) F-blowups of simple elliptic singularities. (1), (3) and (4) are due to joint works with Tadakazu Sawada and Takehiko Yasuda.
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