{"title":"Upper bounds for the constants of Bennett's inequality and the Gale–Berlekamp switching game","authors":"Daniel Pellegrino, Anselmo Raposo Jr.","doi":"10.1112/mtk.12229","DOIUrl":null,"url":null,"abstract":"<p>In 1977, G. Bennett proved, by means of nondeterministic methods, an inequality that plays a fundamental role in a series of optimization problems. More precisely, Bennett's inequality shows that, for <math>\n <semantics>\n <mrow>\n <msub>\n <mi>p</mi>\n <mn>1</mn>\n </msub>\n <mo>,</mo>\n <msub>\n <mi>p</mi>\n <mn>2</mn>\n </msub>\n <mo>∈</mo>\n <mrow>\n <mo>[</mo>\n <mn>1</mn>\n <mo>,</mo>\n <mi>∞</mi>\n <mo>]</mo>\n </mrow>\n </mrow>\n <annotation>$p_{1},p_{2} \\in [1,\\infty ]$</annotation>\n </semantics></math> and all positive integers <math>\n <semantics>\n <mrow>\n <msub>\n <mi>n</mi>\n <mn>1</mn>\n </msub>\n <mo>,</mo>\n <msub>\n <mi>n</mi>\n <mn>2</mn>\n </msub>\n </mrow>\n <annotation>$n_{1},n_{2}$</annotation>\n </semantics></math>, there exists a bilinear form <math>\n <semantics>\n <mrow>\n <msub>\n <mi>A</mi>\n <mrow>\n <msub>\n <mi>n</mi>\n <mn>1</mn>\n </msub>\n <mo>,</mo>\n <msub>\n <mi>n</mi>\n <mn>2</mn>\n </msub>\n </mrow>\n </msub>\n <mrow>\n <mo>:</mo>\n <mo>(</mo>\n </mrow>\n <msup>\n <mi>R</mi>\n <msub>\n <mi>n</mi>\n <mn>1</mn>\n </msub>\n </msup>\n <msub>\n <mrow>\n <mo>,</mo>\n <mo>∥</mo>\n <mo>·</mo>\n <mo>∥</mo>\n </mrow>\n <msub>\n <mi>p</mi>\n <mn>1</mn>\n </msub>\n </msub>\n <mrow>\n <mo>)</mo>\n <mo>×</mo>\n <mo>(</mo>\n </mrow>\n <msup>\n <mi>R</mi>\n <msub>\n <mi>n</mi>\n <mn>2</mn>\n </msub>\n </msup>\n <msub>\n <mrow>\n <mo>,</mo>\n <mo>∥</mo>\n <mo>·</mo>\n <mo>∥</mo>\n </mrow>\n <msub>\n <mi>p</mi>\n <mn>2</mn>\n </msub>\n </msub>\n <mrow>\n <mo>)</mo>\n <mo>⟶</mo>\n <mi>R</mi>\n </mrow>\n </mrow>\n <annotation>$A_{n_{1},n_{2}}\\colon (\\mathbb {R}^{n_{1}},\\Vert \\cdot \\Vert _{p_{1}}) \\times (\\mathbb {R}^{n_{2}},\\Vert \\cdot \\Vert _{p_{2}}) \\longrightarrow \\mathbb {R}$</annotation>\n </semantics></math> with coefficients ±1 satisfying\n\n </p>","PeriodicalId":18463,"journal":{"name":"Mathematika","volume":null,"pages":null},"PeriodicalIF":0.8000,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mathematika","FirstCategoryId":"100","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1112/mtk.12229","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
In 1977, G. Bennett proved, by means of nondeterministic methods, an inequality that plays a fundamental role in a series of optimization problems. More precisely, Bennett's inequality shows that, for and all positive integers , there exists a bilinear form with coefficients ±1 satisfying
期刊介绍:
Mathematika publishes both pure and applied mathematical articles and has done so continuously since its founding by Harold Davenport in the 1950s. The traditional emphasis has been towards the purer side of mathematics but applied mathematics and articles addressing both aspects are equally welcome. The journal is published by the London Mathematical Society, on behalf of its owner University College London, and will continue to publish research papers of the highest mathematical quality.