{"title":"On classification of (n + 6)-dimensional nilpotent n-Lie algebras of class 2 with n ≥ 4","authors":"M. Jamshidi, F. Saeedi, H. Darabi","doi":"10.1108/AJMS-09-2020-0075","DOIUrl":null,"url":null,"abstract":"<jats:sec><jats:title content-type=\"abstract-subheading\">Purpose</jats:title><jats:p>The purpose of this paper is to determine the structure of nilpotent <jats:inline-formula><m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\"><m:mrow><m:mrow><m:mo stretchy=\"true\">(</m:mo><m:mrow><m:mi>n</m:mi><m:mo>+</m:mo><m:mn>6</m:mn></m:mrow><m:mo stretchy=\"true\">)</m:mo></m:mrow></m:mrow></m:math><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"AJMS-09-2020-0075005.tif\" /></jats:inline-formula>-dimensional <jats:italic>n</jats:italic>-Lie algebras of class 2 when <jats:inline-formula><m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\"><m:mrow><m:mi>n</m:mi><m:mo>≥</m:mo><m:mn>4</m:mn></m:mrow></m:math><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"AJMS-09-2020-0075006.tif\" /></jats:inline-formula>.</jats:p></jats:sec><jats:sec><jats:title content-type=\"abstract-subheading\">Design/methodology/approach</jats:title><jats:p>By dividing a nilpotent <jats:inline-formula><m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\"><m:mrow><m:mrow><m:mo stretchy=\"true\">(</m:mo><m:mrow><m:mi>n</m:mi><m:mo>+</m:mo><m:mn>6</m:mn></m:mrow><m:mo stretchy=\"true\">)</m:mo></m:mrow></m:mrow></m:math><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"AJMS-09-2020-0075007.tif\" /></jats:inline-formula>-dimensional <jats:italic>n</jats:italic>-Lie algebra of class 2 by a central element, the authors arrive to a nilpotent <jats:inline-formula><m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\"><m:mrow><m:mrow><m:mo stretchy=\"true\">(</m:mo><m:mrow><m:mi>n</m:mi><m:mo>+</m:mo><m:mn>5</m:mn></m:mrow><m:mo stretchy=\"true\">)</m:mo></m:mrow></m:mrow></m:math><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"AJMS-09-2020-0075008.tif\" /></jats:inline-formula> dimensional <jats:italic>n</jats:italic>-Lie algebra of class 2. Given that the authors have the structure of nilpotent <jats:inline-formula><m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\"><m:mrow><m:mrow><m:mo stretchy=\"true\">(</m:mo><m:mrow><m:mi>n</m:mi><m:mo>+</m:mo><m:mn>5</m:mn></m:mrow><m:mo stretchy=\"true\">)</m:mo></m:mrow></m:mrow></m:math><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"AJMS-09-2020-0075009.tif\" /></jats:inline-formula>-dimensional <jats:italic>n</jats:italic>-Lie algebras of class 2, the authors have access to the structure of the desired algebras.</jats:p></jats:sec><jats:sec><jats:title content-type=\"abstract-subheading\">Findings</jats:title><jats:p>In this paper, for each <jats:inline-formula><m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\"><m:mrow><m:mi>n</m:mi><m:mo>≥</m:mo><m:mn>4</m:mn></m:mrow></m:math><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"AJMS-09-2020-0075010.tif\" /></jats:inline-formula>, the authors have found 24 nilpotent <jats:inline-formula><m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\"><m:mrow><m:mrow><m:mo stretchy=\"true\">(</m:mo><m:mrow><m:mi>n</m:mi><m:mo>+</m:mo><m:mn>6</m:mn></m:mrow><m:mo stretchy=\"true\">)</m:mo></m:mrow></m:mrow></m:math><jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"AJMS-09-2020-0075011.tif\" /></jats:inline-formula> dimensional <jats:italic>n</jats:italic>-Lie algebras of class 2. Of these, 15 are non-split algebras and the nine remaining algebras are written as direct additions of <jats:italic>n</jats:italic>-Lie algebras of low-dimension and abelian <jats:italic>n</jats:italic>-Lie algebras.</jats:p></jats:sec><jats:sec><jats:title content-type=\"abstract-subheading\">Originality/value</jats:title><jats:p>This classification of <jats:italic>n</jats:italic>-Lie algebras provides a complete understanding of these algebras that are used in algebraic studies.</jats:p></jats:sec>","PeriodicalId":36840,"journal":{"name":"Arab Journal of Mathematical Sciences","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2020-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Arab Journal of Mathematical Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1108/AJMS-09-2020-0075","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Mathematics","Score":null,"Total":0}
引用次数: 3
Abstract
PurposeThe purpose of this paper is to determine the structure of nilpotent (n+6)-dimensional n-Lie algebras of class 2 when n≥4.Design/methodology/approachBy dividing a nilpotent (n+6)-dimensional n-Lie algebra of class 2 by a central element, the authors arrive to a nilpotent (n+5) dimensional n-Lie algebra of class 2. Given that the authors have the structure of nilpotent (n+5)-dimensional n-Lie algebras of class 2, the authors have access to the structure of the desired algebras.FindingsIn this paper, for each n≥4, the authors have found 24 nilpotent (n+6) dimensional n-Lie algebras of class 2. Of these, 15 are non-split algebras and the nine remaining algebras are written as direct additions of n-Lie algebras of low-dimension and abelian n-Lie algebras.Originality/valueThis classification of n-Lie algebras provides a complete understanding of these algebras that are used in algebraic studies.