{"title":"ON THE MILNOR FIBRATION OF CERTAIN NEWTON DEGENERATE FUNCTIONS","authors":"C. Eyral, M. Oka","doi":"10.1017/nmj.2022.37","DOIUrl":null,"url":null,"abstract":"Abstract It is well known that the diffeomorphism type of the Milnor fibration of a (Newton) nondegenerate polynomial function f is uniquely determined by the Newton boundary of f. In the present paper, we generalize this result to certain degenerate functions, namely we show that the diffeomorphism type of the Milnor fibration of a (possibly degenerate) polynomial function of the form \n$f=f^1\\cdots f^{k_0}$\n is uniquely determined by the Newton boundaries of \n$f^1,\\ldots , f^{k_0}$\n if \n$\\{f^{k_1}=\\cdots =f^{k_m}=0\\}$\n is a nondegenerate complete intersection variety for any \n$k_1,\\ldots ,k_m\\in \\{1,\\ldots , k_0\\}$\n .","PeriodicalId":49785,"journal":{"name":"Nagoya Mathematical Journal","volume":"250 1","pages":"410 - 433"},"PeriodicalIF":0.8000,"publicationDate":"2021-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nagoya Mathematical Journal","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.1017/nmj.2022.37","RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract It is well known that the diffeomorphism type of the Milnor fibration of a (Newton) nondegenerate polynomial function f is uniquely determined by the Newton boundary of f. In the present paper, we generalize this result to certain degenerate functions, namely we show that the diffeomorphism type of the Milnor fibration of a (possibly degenerate) polynomial function of the form
$f=f^1\cdots f^{k_0}$
is uniquely determined by the Newton boundaries of
$f^1,\ldots , f^{k_0}$
if
$\{f^{k_1}=\cdots =f^{k_m}=0\}$
is a nondegenerate complete intersection variety for any
$k_1,\ldots ,k_m\in \{1,\ldots , k_0\}$
.
期刊介绍:
The Nagoya Mathematical Journal is published quarterly. Since its formation in 1950 by a group led by Tadashi Nakayama, the journal has endeavoured to publish original research papers of the highest quality and of general interest, covering a broad range of pure mathematics. The journal is owned by Foundation Nagoya Mathematical Journal, which uses the proceeds from the journal to support mathematics worldwide.