{"title":"A Problem with Analogue of the Frankl and Mixing Conditions for the Gellerstedt Equation with Singular Coefficient","authors":"D. M. Mirsaburova","doi":"10.3103/s1066369x24700427","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>For the equation <span>\\((\\operatorname{sgn} y){{\\left| y \\right|}^{m}}{{u}_{{xx}}} + {{u}_{{yy}}} + {{\\alpha }_{0}}{{\\left| y \\right|}^{{(m - 2)/2}}}{{u}_{x}} + ({{\\beta }_{0}}{\\text{/}}y){{u}_{y}} = 0,\\)</span> considered in some unbounded mixed domain, uniqueness and existence theorems are proved for a solution to the problem with the missing shift condition on the boundary characteristics and an analogue of the Frankl-type condition on the interval of degeneracy of the equation.</p>","PeriodicalId":46110,"journal":{"name":"Russian Mathematics","volume":"57 1","pages":""},"PeriodicalIF":0.5000,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Mathematics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3103/s1066369x24700427","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 0
Abstract
For the equation \((\operatorname{sgn} y){{\left| y \right|}^{m}}{{u}_{{xx}}} + {{u}_{{yy}}} + {{\alpha }_{0}}{{\left| y \right|}^{{(m - 2)/2}}}{{u}_{x}} + ({{\beta }_{0}}{\text{/}}y){{u}_{y}} = 0,\) considered in some unbounded mixed domain, uniqueness and existence theorems are proved for a solution to the problem with the missing shift condition on the boundary characteristics and an analogue of the Frankl-type condition on the interval of degeneracy of the equation.