{"title":"加权均质叶状变形,以及半加权均质 ICIS 族的微观化","authors":"Dmitry Kerner, Rodrigo Mendes","doi":"arxiv-2409.09764","DOIUrl":null,"url":null,"abstract":"Let X_o be a weighted-homogeneous complete intersection germ in (R^N,o) or\n(C^N,o), with arbitrary singularities, possibly non-reduced. Take the foliation\nof the ambient space by weighted-homogeneous real arcs, \\ga_s. Take a deformation of X_o by higher order terms, X_t. Does the foliation\n\\ga_s deform compatibly with X_t? We identify the ``obstruction locus\", \\Sigma\nin X_o, outside of which such a deformation does exist, and possesses\nexceptionally nice properties. Using this deformed foliation we construct a contact trivialization of the\nfamily of defining equations by a homeomorphism that is real analytic (resp.\nNash) off the origin, differentiable at the origin, whose presentation in\nweighted-polar coordinates is globally real-analytic (resp. globally Nash), and\nwith controlled Lipschitz/C^1-properties.","PeriodicalId":501444,"journal":{"name":"arXiv - MATH - Metric Geometry","volume":"4 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Deforming the weighted-homogeneous foliation, and trivializing families of semi-weighted homogeneous ICIS\",\"authors\":\"Dmitry Kerner, Rodrigo Mendes\",\"doi\":\"arxiv-2409.09764\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Let X_o be a weighted-homogeneous complete intersection germ in (R^N,o) or\\n(C^N,o), with arbitrary singularities, possibly non-reduced. Take the foliation\\nof the ambient space by weighted-homogeneous real arcs, \\\\ga_s. Take a deformation of X_o by higher order terms, X_t. Does the foliation\\n\\\\ga_s deform compatibly with X_t? We identify the ``obstruction locus\\\", \\\\Sigma\\nin X_o, outside of which such a deformation does exist, and possesses\\nexceptionally nice properties. Using this deformed foliation we construct a contact trivialization of the\\nfamily of defining equations by a homeomorphism that is real analytic (resp.\\nNash) off the origin, differentiable at the origin, whose presentation in\\nweighted-polar coordinates is globally real-analytic (resp. globally Nash), and\\nwith controlled Lipschitz/C^1-properties.\",\"PeriodicalId\":501444,\"journal\":{\"name\":\"arXiv - MATH - Metric Geometry\",\"volume\":\"4 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - MATH - Metric Geometry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.09764\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - MATH - Metric Geometry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.09764","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Deforming the weighted-homogeneous foliation, and trivializing families of semi-weighted homogeneous ICIS
Let X_o be a weighted-homogeneous complete intersection germ in (R^N,o) or
(C^N,o), with arbitrary singularities, possibly non-reduced. Take the foliation
of the ambient space by weighted-homogeneous real arcs, \ga_s. Take a deformation of X_o by higher order terms, X_t. Does the foliation
\ga_s deform compatibly with X_t? We identify the ``obstruction locus", \Sigma
in X_o, outside of which such a deformation does exist, and possesses
exceptionally nice properties. Using this deformed foliation we construct a contact trivialization of the
family of defining equations by a homeomorphism that is real analytic (resp.
Nash) off the origin, differentiable at the origin, whose presentation in
weighted-polar coordinates is globally real-analytic (resp. globally Nash), and
with controlled Lipschitz/C^1-properties.