{"title":"梁振动方程中未知系数的非局部反演问题","authors":"U. D. Durdiev, Z. R. Bozorov","doi":"10.1134/S1990478923020060","DOIUrl":null,"url":null,"abstract":"<p> The paper is devoted to the study of the direct problem for the vibration of\na homogeneous beam of finite length with nonlocal time conditions. Necessary and sufficient\nconditions for the existence of a solution of the direct problem are obtained. For the direct\nproblem, we study the inverse problem of determining the time-dependent coefficient multiplying\na lower-order derivative. Using the eigenvalues and eigenfunctions, the problem is reduced to\na system of integral equations. The existence and uniqueness of the solution of inverse problems\nare shown using the Banach principle.\n</p>","PeriodicalId":607,"journal":{"name":"Journal of Applied and Industrial Mathematics","volume":"17 2","pages":"281 - 290"},"PeriodicalIF":0.5800,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Nonlocal Inverse Problem for Determining the Unknown Coefficient in the Beam Vibration Equation\",\"authors\":\"U. D. Durdiev, Z. R. Bozorov\",\"doi\":\"10.1134/S1990478923020060\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p> The paper is devoted to the study of the direct problem for the vibration of\\na homogeneous beam of finite length with nonlocal time conditions. Necessary and sufficient\\nconditions for the existence of a solution of the direct problem are obtained. For the direct\\nproblem, we study the inverse problem of determining the time-dependent coefficient multiplying\\na lower-order derivative. Using the eigenvalues and eigenfunctions, the problem is reduced to\\na system of integral equations. The existence and uniqueness of the solution of inverse problems\\nare shown using the Banach principle.\\n</p>\",\"PeriodicalId\":607,\"journal\":{\"name\":\"Journal of Applied and Industrial Mathematics\",\"volume\":\"17 2\",\"pages\":\"281 - 290\"},\"PeriodicalIF\":0.5800,\"publicationDate\":\"2023-08-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Applied and Industrial Mathematics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1990478923020060\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied and Industrial Mathematics","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1990478923020060","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Engineering","Score":null,"Total":0}
Nonlocal Inverse Problem for Determining the Unknown Coefficient in the Beam Vibration Equation
The paper is devoted to the study of the direct problem for the vibration of
a homogeneous beam of finite length with nonlocal time conditions. Necessary and sufficient
conditions for the existence of a solution of the direct problem are obtained. For the direct
problem, we study the inverse problem of determining the time-dependent coefficient multiplying
a lower-order derivative. Using the eigenvalues and eigenfunctions, the problem is reduced to
a system of integral equations. The existence and uniqueness of the solution of inverse problems
are shown using the Banach principle.
期刊介绍:
Journal of Applied and Industrial Mathematics is a journal that publishes original and review articles containing theoretical results and those of interest for applications in various branches of industry. The journal topics include the qualitative theory of differential equations in application to mechanics, physics, chemistry, biology, technical and natural processes; mathematical modeling in mechanics, physics, engineering, chemistry, biology, ecology, medicine, etc.; control theory; discrete optimization; discrete structures and extremum problems; combinatorics; control and reliability of discrete circuits; mathematical programming; mathematical models and methods for making optimal decisions; models of theory of scheduling, location and replacement of equipment; modeling the control processes; development and analysis of algorithms; synthesis and complexity of control systems; automata theory; graph theory; game theory and its applications; coding theory; scheduling theory; and theory of circuits.