{"title":"各向同性子群诱导的魏尔表示的模块形式","authors":"Manuel K.-H. Müller","doi":"10.1016/j.jnt.2024.04.005","DOIUrl":null,"url":null,"abstract":"<div><p>For an isotropic subgroup <em>H</em> of a discriminant form <em>D</em> there exists a lift from modular forms for the Weil representation of the discriminant form <span><math><msup><mrow><mi>H</mi></mrow><mrow><mo>⊥</mo></mrow></msup><mo>/</mo><mi>H</mi></math></span> to modular forms for the Weil representation of <em>D</em>. We determine a set of discriminant forms such that all modular forms for any discriminant form are induced from the discriminant forms in this set. Furthermore for any discriminant form in this set there exist modular forms that are not induced from smaller discriminant forms.</p></div>","PeriodicalId":50110,"journal":{"name":"Journal of Number Theory","volume":"263 ","pages":"Pages 206-233"},"PeriodicalIF":0.6000,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0022314X24001082/pdfft?md5=b8470837b07e5d1a04073db4dbf9f70c&pid=1-s2.0-S0022314X24001082-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Modular forms for the Weil representation induced from isotropic subgroups\",\"authors\":\"Manuel K.-H. Müller\",\"doi\":\"10.1016/j.jnt.2024.04.005\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>For an isotropic subgroup <em>H</em> of a discriminant form <em>D</em> there exists a lift from modular forms for the Weil representation of the discriminant form <span><math><msup><mrow><mi>H</mi></mrow><mrow><mo>⊥</mo></mrow></msup><mo>/</mo><mi>H</mi></math></span> to modular forms for the Weil representation of <em>D</em>. We determine a set of discriminant forms such that all modular forms for any discriminant form are induced from the discriminant forms in this set. Furthermore for any discriminant form in this set there exist modular forms that are not induced from smaller discriminant forms.</p></div>\",\"PeriodicalId\":50110,\"journal\":{\"name\":\"Journal of Number Theory\",\"volume\":\"263 \",\"pages\":\"Pages 206-233\"},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2024-05-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S0022314X24001082/pdfft?md5=b8470837b07e5d1a04073db4dbf9f70c&pid=1-s2.0-S0022314X24001082-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Number Theory\",\"FirstCategoryId\":\"100\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022314X24001082\",\"RegionNum\":3,\"RegionCategory\":\"数学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATHEMATICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Number Theory","FirstCategoryId":"100","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022314X24001082","RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 0
摘要
对于判别式 D 的各向同性子群 H,存在着从判别式 H⊥/H 的 Weil 表示的模块形式到 D 的 Weil 表示的模块形式的提升。此外,对于这个集合中的任何判别式,都存在不是从更小的判别式诱导出来的模块形式。
Modular forms for the Weil representation induced from isotropic subgroups
For an isotropic subgroup H of a discriminant form D there exists a lift from modular forms for the Weil representation of the discriminant form to modular forms for the Weil representation of D. We determine a set of discriminant forms such that all modular forms for any discriminant form are induced from the discriminant forms in this set. Furthermore for any discriminant form in this set there exist modular forms that are not induced from smaller discriminant forms.
期刊介绍:
The Journal of Number Theory (JNT) features selected research articles that represent the broad spectrum of interest in contemporary number theory and allied areas. A valuable resource for mathematicians, the journal provides an international forum for the publication of original research in this field.
The Journal of Number Theory is encouraging submissions of quality, long articles where most or all of the technical details are included. The journal now considers and welcomes also papers in Computational Number Theory.
Starting in May 2019, JNT will have a new format with 3 sections:
JNT Prime targets (possibly very long with complete proofs) high impact papers. Articles published in this section will be granted 1 year promotional open access.
JNT General Section is for shorter papers. We particularly encourage submission from junior researchers. Every attempt will be made to expedite the review process for such submissions.
Computational JNT . This section aims to provide a forum to disseminate contributions which make significant use of computer calculations to derive novel number theoretic results. There will be an online repository where supplementary codes and data can be stored.