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- Tomaru Tadashi
- School of Health Sciences, Gunma University
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抄録
Let (X,o) be a normal complex surface singularity. We define an invariant pe(X,o) for (X,o) in terms of pencils of compact complex curves. Similarly, for a pair of (X,o) and h∈$¥mathfrak m$X,o (the maximal ideal of $¥mathscr{O}$X,o), we define an invariant pe(X,o,h). We call pe(X,o) (resp. pe(X,o,h)) the pencil genus of (X,o) (resp. a pair of (X,o) and h). In this paper, we give a method to construct pencils of compact complex curves by gluing a resolution space of (X,o) and resolution spaces of some cyclic quotient singularities. Using this, we prove some formulae on pe(X,o,h) and estimate pe(X,o). We also characterize Kodaira singularities in terms of pe(X,o,h).
収録刊行物
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- Journal of the Mathematical Society of Japan
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Journal of the Mathematical Society of Japan 59 (1), 35-80, 2007
一般社団法人 日本数学会
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詳細情報 詳細情報について
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- CRID
- 1390001205116317696
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- NII論文ID
- 10019540487
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- NII書誌ID
- AA0070177X
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- ISSN
- 18811167
- 18812333
- 00255645
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- MRID
- 2302662
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- NDL書誌ID
- 8612721
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- KAKEN
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- 使用不可