Arnold's problem on monotonicity of the Newton number for surface singularities
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- Brzostowski Szymon
- Faculty of Mathematics and Computer Science University of Łódź
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- Krasiński Tadeusz
- Faculty of Mathematics and Computer Science University of Łódź
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- Walewska Justyna
- Faculty of Mathematics and Computer Science University of Łódź
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<p>According to the Kouchnirenko Theorem, for a generic (meaning non-degenerate in the Kouchnirenko sense) isolated singularity 𝑓 its Milnor number 𝜇 (𝑓) is equal to the Newton number 𝜈 (𝚪+(𝑓)) of a combinatorial object associated to 𝑓, the Newton polyhedron 𝚪+ (𝑓). We give a simple condition characterizing, in terms of 𝚪+ (𝑓) and 𝚪+ (𝑔), the equality 𝜈 (𝚪+(𝑓)) = 𝜈 (𝚪+(𝑔)), for any surface singularities 𝑓 and 𝑔 satisfying 𝚪+ (𝑓) ⊂ 𝚪+ (𝑔). This is a complete solution to an Arnold problem (No. 1982-16 in his list of problems) in this case.</p>
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 71 (4), 1257-1268, 2019
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
- 1390564227327674624
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- NII論文ID
- 130007733382
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- NII書誌ID
- AA0070177X
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- ISSN
- 18811167
- 18812333
- 00255645
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- NDL書誌ID
- 030030216
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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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