{"title":"On the Properties of the Root Vector Function Systems of a $$2m $$ th-Order Dirac Type Operator with an Integrable Potential","authors":"E. C. Ibadov","doi":"10.1134/s00122661230100014","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p> We consider a Dirac type operator with matrix coefficients. Estimates for the root vector\nfunctions are established, and criteria for the Bessel property and the unconditional basis property\nof the root vector function systems of this operator in the space <span>\\(L_{2}^{2m}(G) \\)</span>, where <span>\\(G=(a,b)\\subset \\mathbb {R} \\)</span> is a finite interval, are obtained.\n</p>","PeriodicalId":50580,"journal":{"name":"Differential Equations","volume":"189 1","pages":""},"PeriodicalIF":0.8000,"publicationDate":"2023-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Differential Equations","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.1134/s00122661230100014","RegionNum":4,"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 consider a Dirac type operator with matrix coefficients. Estimates for the root vector
functions are established, and criteria for the Bessel property and the unconditional basis property
of the root vector function systems of this operator in the space \(L_{2}^{2m}(G) \), where \(G=(a,b)\subset \mathbb {R} \) is a finite interval, are obtained.
期刊介绍:
Differential Equations is a journal devoted to differential equations and the associated integral equations. The journal publishes original articles by authors from all countries and accepts manuscripts in English and Russian. The topics of the journal cover ordinary differential equations, partial differential equations, spectral theory of differential operators, integral and integral–differential equations, difference equations and their applications in control theory, mathematical modeling, shell theory, informatics, and oscillation theory. The journal is published in collaboration with the Department of Mathematics and the Division of Nanotechnologies and Information Technologies of the Russian Academy of Sciences and the Institute of Mathematics of the National Academy of Sciences of Belarus.