{"title":"Solubility of additive forms of twice odd degree over totally ramified extensions of \n \n \n Q\n 2\n \n $\\mathbb {Q}_2$","authors":"Drew Duncan","doi":"10.1112/blms.13120","DOIUrl":null,"url":null,"abstract":"<p>We prove that an additive form of degree <span></span><math>\n <semantics>\n <mrow>\n <mi>d</mi>\n <mo>=</mo>\n <mn>2</mn>\n <mi>m</mi>\n </mrow>\n <annotation>$d=2m$</annotation>\n </semantics></math>, <span></span><math>\n <semantics>\n <mi>m</mi>\n <annotation>$m$</annotation>\n </semantics></math> odd over any totally ramified extension of <span></span><math>\n <semantics>\n <msub>\n <mi>Q</mi>\n <mn>2</mn>\n </msub>\n <annotation>$\\mathbb {Q}_2$</annotation>\n </semantics></math> has a nontrivial zero if the number of variables <span></span><math>\n <semantics>\n <mi>s</mi>\n <annotation>$s$</annotation>\n </semantics></math> satisfies <span></span><math>\n <semantics>\n <mrow>\n <mi>s</mi>\n <mo>⩾</mo>\n <mfrac>\n <msup>\n <mi>d</mi>\n <mn>2</mn>\n </msup>\n <mn>4</mn>\n </mfrac>\n <mo>+</mo>\n <mn>3</mn>\n <mi>d</mi>\n <mo>+</mo>\n <mn>1</mn>\n </mrow>\n <annotation>$s \\geqslant \\frac{d^2}{4} + 3d + 1$</annotation>\n </semantics></math>.</p>","PeriodicalId":55298,"journal":{"name":"Bulletin of the London Mathematical Society","volume":"56 10","pages":"3129-3133"},"PeriodicalIF":0.8000,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of the London Mathematical Society","FirstCategoryId":"100","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1112/blms.13120","RegionNum":3,"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
We prove that an additive form of degree , odd over any totally ramified extension of has a nontrivial zero if the number of variables satisfies .