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On the iterative method for solution of direct and inverse problems for parabolic equations 抛物型方程正反问题的迭代解法
IF 0.2
Izvestiya of Saratov University Mathematics Mechanics Informatics Pub Date : 2023-08-22 DOI: 10.18500/1816-9791-2023-23-3-286-310
I. Boykov, V. Ryazantsev
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引用次数: 0
Stability of three-layer differential-difference schemes with weights in the space of summable functions with supports in a network-like domain 类网络域上带支持的可和函数空间中带权的三层差分格式的稳定性
IF 0.2
Izvestiya of Saratov University Mathematics Mechanics Informatics Pub Date : 2023-08-22 DOI: 10.18500/1816-9791-2023-23-3-357-369
V. N. Hoang, V. Provotorov
{"title":"Stability of three-layer differential-difference schemes with weights in the space of summable functions with supports in a network-like domain","authors":"V. N. Hoang, V. Provotorov","doi":"10.18500/1816-9791-2023-23-3-357-369","DOIUrl":"https://doi.org/10.18500/1816-9791-2023-23-3-357-369","url":null,"abstract":"","PeriodicalId":42789,"journal":{"name":"Izvestiya of Saratov University Mathematics Mechanics Informatics","volume":"19 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78875214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On the question of the residual of strong exponents of oscillation on the set of solutions of third-order differential equations 三阶微分方程解集上强振荡指数的残差问题
IF 0.2
Izvestiya of Saratov University Mathematics Mechanics Informatics Pub Date : 2023-08-22 DOI: 10.18500/1816-9791-2023-23-3-348-356
A. Stash, N. A. Loboda
{"title":"On the question of the residual of strong exponents of oscillation on the set of solutions of third-order differential equations","authors":"A. Stash, N. A. Loboda","doi":"10.18500/1816-9791-2023-23-3-348-356","DOIUrl":"https://doi.org/10.18500/1816-9791-2023-23-3-348-356","url":null,"abstract":"","PeriodicalId":42789,"journal":{"name":"Izvestiya of Saratov University Mathematics Mechanics Informatics","volume":"57 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81542588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simulation models and research algorithms of thin shell structures deformation Part I. Shell deformation models 薄壳结构变形的仿真模型与研究算法第一部分:薄壳结构变形模型
IF 0.2
Izvestiya of Saratov University Mathematics Mechanics Informatics Pub Date : 2023-08-22 DOI: 10.18500/1816-9791-2023-23-3-370-410
V. Karpov, P. A. Bakusov, A. Maslennikov, A. Semenov
{"title":"Simulation models and research algorithms of thin shell structures deformation Part I. Shell deformation models","authors":"V. Karpov, P. A. Bakusov, A. Maslennikov, A. Semenov","doi":"10.18500/1816-9791-2023-23-3-370-410","DOIUrl":"https://doi.org/10.18500/1816-9791-2023-23-3-370-410","url":null,"abstract":"","PeriodicalId":42789,"journal":{"name":"Izvestiya of Saratov University Mathematics Mechanics Informatics","volume":"1 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89369229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Risky investments and survival probability in the insurance model with two-sided jumps: Problems for integrodifferential equations and ordinary differential equation and their equivalence 双侧跳跃保险模型中的风险投资和生存概率:积分微分方程和常微分方程及其等价问题
IF 0.2
Izvestiya of Saratov University Mathematics Mechanics Informatics Pub Date : 2023-08-22 DOI: 10.18500/1816-9791-2023-23-3-278-285
T. Belkina, A. S. Ogareva
{"title":"Risky investments and survival probability in the insurance model with two-sided jumps: Problems for integrodifferential equations and ordinary differential equation and their equivalence","authors":"T. Belkina, A. S. Ogareva","doi":"10.18500/1816-9791-2023-23-3-278-285","DOIUrl":"https://doi.org/10.18500/1816-9791-2023-23-3-278-285","url":null,"abstract":"","PeriodicalId":42789,"journal":{"name":"Izvestiya of Saratov University Mathematics Mechanics Informatics","volume":"199 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77265088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cloud service for interactive simulation of production location 用于生产位置交互式模拟的云服务
IF 0.2
Izvestiya of Saratov University Mathematics Mechanics Informatics Pub Date : 2023-08-22 DOI: 10.18500/1816-9791-2023-23-3-411-417
A. Velichko
{"title":"Cloud service for interactive simulation of production location","authors":"A. Velichko","doi":"10.18500/1816-9791-2023-23-3-411-417","DOIUrl":"https://doi.org/10.18500/1816-9791-2023-23-3-411-417","url":null,"abstract":"","PeriodicalId":42789,"journal":{"name":"Izvestiya of Saratov University Mathematics Mechanics Informatics","volume":"30 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77190564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unitary extension principle on zero-dimensional locally compact groups 零维局部紧群上的酉可拓原理
IF 0.2
Izvestiya of Saratov University Mathematics Mechanics Informatics Pub Date : 2023-08-22 DOI: 10.18500/1816-9791-2023-23-3-320-338
S. F. Lukomskii, I. Kruss
{"title":"Unitary extension principle on zero-dimensional locally compact groups","authors":"S. F. Lukomskii, I. Kruss","doi":"10.18500/1816-9791-2023-23-3-320-338","DOIUrl":"https://doi.org/10.18500/1816-9791-2023-23-3-320-338","url":null,"abstract":"","PeriodicalId":42789,"journal":{"name":"Izvestiya of Saratov University Mathematics Mechanics Informatics","volume":"1 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81125902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On functions of van der Waerden type 关于van der Waerden型函数
IF 0.2
Izvestiya of Saratov University Mathematics Mechanics Informatics Pub Date : 2023-08-22 DOI: 10.18500/1816-9791-2023-23-3-339-347
A. Rubinsteĭn, D. Telyakovskii
{"title":"On functions of van der Waerden type","authors":"A. Rubinsteĭn, D. Telyakovskii","doi":"10.18500/1816-9791-2023-23-3-339-347","DOIUrl":"https://doi.org/10.18500/1816-9791-2023-23-3-339-347","url":null,"abstract":"","PeriodicalId":42789,"journal":{"name":"Izvestiya of Saratov University Mathematics Mechanics Informatics","volume":"87 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82212445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Classic and generalized solutions of the mixed problem for wave equation with a summable potential. Part I. Classic solution of the mixed problem 具有可和势的波动方程混合问题的经典解和广义解。第一部分:混合问题的经典解
IF 0.2
Izvestiya of Saratov University Mathematics Mechanics Informatics Pub Date : 2023-08-22 DOI: 10.18500/1816-9791-2023-23-3-311-319
V. P. Kurdyumov
{"title":"Classic and generalized solutions of the mixed problem for wave equation with a summable potential. Part I. Classic solution of the mixed problem","authors":"V. P. Kurdyumov","doi":"10.18500/1816-9791-2023-23-3-311-319","DOIUrl":"https://doi.org/10.18500/1816-9791-2023-23-3-311-319","url":null,"abstract":"","PeriodicalId":42789,"journal":{"name":"Izvestiya of Saratov University Mathematics Mechanics Informatics","volume":"77 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76597590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The uniqueness of the solution of an initial boundary value problem for a hyperbolic equation with a mixed derivative and a formula for the solution 具有混合导数的双曲型方程初边值问题解的唯一性，并给出了解的公式
IF 0.2
Izvestiya of Saratov University Mathematics Mechanics Informatics Pub Date : 2023-05-22 DOI: 10.18500/1816-9791-2023-23-2-183-194
V. Rykhlov
{"title":"The uniqueness of the solution of an initial boundary value problem for a hyperbolic equation with a mixed derivative and a formula for the solution","authors":"V. Rykhlov","doi":"10.18500/1816-9791-2023-23-2-183-194","DOIUrl":"https://doi.org/10.18500/1816-9791-2023-23-2-183-194","url":null,"abstract":". An initial boundary value problem for an inhomogeneous second-order hyperbolic equation on a finite segment with constant coefficients and a mixed derivative is investigated. The case of fixed ends is considered. It is assumed that the roots of the characteristic equation are simple and lie on the real axis on different sides of the origin. The classical solution of the initial boundary value problem is determined. The uniqueness theorem of the classical solution is formulated and proved. A formula is given for the solution in the form of a series whose members are contour integrals containing the initial data of the problem. The corresponding spectral problem for a quadratic beam is constructed and a theorem is formulated on the expansion of the first component of a vector-function with respect to the derivative chains corresponding to the eigenfunctions of the beam. This theorem is essentially used in proving the uniqueness theorem for the classical solution of the initial boundary value problem.","PeriodicalId":42789,"journal":{"name":"Izvestiya of Saratov University Mathematics Mechanics Informatics","volume":"8 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82369268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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