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Growth regularity for the arguments of meromorphic in $mathbb Csetminus{0}$ functions of completely regular growth 完全正则增长$mathbb C set- {0}$函数中亚纯参数的增长规律
IF 0.5
Ufa Mathematical Journal Pub Date : 2017-01-01 DOI: 10.13108/2017-9-1-123
Andriy Yaroslavovych Khrystiyanyn, O. S. Vyshyns'kyi
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引用次数: 0
Determination of parameters in telegraph equation 电报方程参数的确定
IF 0.5
Ufa Mathematical Journal Pub Date : 2017-01-01 DOI: 10.13108/2017-9-1-62
A. I. Kozhanov, R. R. Safiullova
{"title":"Determination of parameters in telegraph equation","authors":"A. I. Kozhanov, R. R. Safiullova","doi":"10.13108/2017-9-1-62","DOIUrl":"https://doi.org/10.13108/2017-9-1-62","url":null,"abstract":"We study the solvability of the inverse problems on finding a solution u(x, t) and an unknown coefficient c for a telegraph equation utt −Δu+ cu = f(x, t). We prove the theorems on the existence of the regular solutions. The feature of the problems is a presence of new overdetermination conditions for the considered class of equations.","PeriodicalId":43644,"journal":{"name":"Ufa Mathematical Journal","volume":"2 1","pages":"62-74"},"PeriodicalIF":0.5,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78927869","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: 8
Representation of functions in locally convex subspaces of $A^infty (D)$ by series of exponentials 用指数级数表示$A^infty (D)$的局部凸子空间中的函数
IF 0.5
Ufa Mathematical Journal Pub Date : 2017-01-01 DOI: 10.13108/2017-9-3-48
K. P. Isaev, K. Trounov, R. S. Yulmukhametov
{"title":"Representation of functions in locally convex subspaces of $A^infty (D)$ by series of exponentials","authors":"K. P. Isaev, K. Trounov, R. S. Yulmukhametov","doi":"10.13108/2017-9-3-48","DOIUrl":"https://doi.org/10.13108/2017-9-3-48","url":null,"abstract":"","PeriodicalId":43644,"journal":{"name":"Ufa Mathematical Journal","volume":"43 1","pages":"48-60"},"PeriodicalIF":0.5,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89470976","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: 5
On deficiency index for some second order vector differential operators 一类二阶矢量微分算子的亏缺指标
IF 0.5
Ufa Mathematical Journal Pub Date : 2017-01-01 DOI: 10.13108/2017-9-1-18
I. N. Braeutigam, K. A. Mirzoev, T. Safonova
{"title":"On deficiency index for some second order vector differential operators","authors":"I. N. Braeutigam, K. A. Mirzoev, T. Safonova","doi":"10.13108/2017-9-1-18","DOIUrl":"https://doi.org/10.13108/2017-9-1-18","url":null,"abstract":". In this paper we consider the operators generated by the second order matrix linear symmetric quasi-differential expression on the set [1 , + ∞ ), where 𝑃 − 1 ( 𝑥 ), 𝑄 ( 𝑥 ) are Hermitian matrix functions and 𝑅 ( 𝑥 ) is a complex matrix function of order 𝑛 with entries 𝑝 𝑖𝑗 ( 𝑥 ) , 𝑞 𝑖𝑗 ( 𝑥 ) , 𝑟 𝑖𝑗 ( 𝑥 ) ∈ 𝐿 1 𝑙𝑜𝑐 [1 , + ∞ ) ( 𝑖, 𝑗 = 1 , 2 , . . . , 𝑛 ). We describe the minimal closed symmetric operator 𝐿 0 generated by this expression in the Hilbert space 𝐿 2 𝑛 [1 , + ∞ ). For this operator we prove an analogue of the Orlov’s theorem on the deficiency index of linear scalar differential operators.","PeriodicalId":43644,"journal":{"name":"Ufa Mathematical Journal","volume":"24 1","pages":"18-28"},"PeriodicalIF":0.5,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82364494","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: 8
On one Leontiev-Levin theorem Leontiev-Levin定理
IF 0.5
Ufa Mathematical Journal Pub Date : 2017-01-01 DOI: 10.13108/2017-9-3-87
A. Krivosheev, A. F. Kuzhaev
{"title":"On one Leontiev-Levin theorem","authors":"A. Krivosheev, A. F. Kuzhaev","doi":"10.13108/2017-9-3-87","DOIUrl":"https://doi.org/10.13108/2017-9-3-87","url":null,"abstract":"","PeriodicalId":43644,"journal":{"name":"Ufa Mathematical Journal","volume":"6 1","pages":"87-99"},"PeriodicalIF":0.5,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85581186","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: 1
On continuity and differentiability of the maximum values of functions 关于函数最大值的连续性和可微性
IF 0.5
Ufa Mathematical Journal Pub Date : 2017-01-01 DOI: 10.13108/2017-9-4-54
V. Klyachin
{"title":"On continuity and differentiability of the maximum values of functions","authors":"V. Klyachin","doi":"10.13108/2017-9-4-54","DOIUrl":"https://doi.org/10.13108/2017-9-4-54","url":null,"abstract":"","PeriodicalId":43644,"journal":{"name":"Ufa Mathematical Journal","volume":"37 1","pages":"54-58"},"PeriodicalIF":0.5,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90208463","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 geometry of solutions to approximate equations and their symmetries 近似方程解的几何及其对称性
IF 0.5
Ufa Mathematical Journal Pub Date : 2017-01-01 DOI: 10.13108/2017-9-2-40
V. Gorbatsevich
{"title":"On geometry of solutions to approximate equations and their symmetries","authors":"V. Gorbatsevich","doi":"10.13108/2017-9-2-40","DOIUrl":"https://doi.org/10.13108/2017-9-2-40","url":null,"abstract":". The paper is devoted to developing a geometric approach to the theory of approximate equations (including ODEs and PDEs) and their symmetries. We introduce dual Lie algebras, manifolds over dual numbers and dual Lie group. We describe some constructions applied for these objects. On the basis of these constructions, we show how one can formulate basic concepts and methods in the theory of approximate equations and their symmetries. The proofs of many general results here can be obtained almost immediately from classical ones, unlike the methods used for studying the approximate equations.","PeriodicalId":43644,"journal":{"name":"Ufa Mathematical Journal","volume":"37 1","pages":"40-54"},"PeriodicalIF":0.5,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81935770","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: 4
Analogue of Tricomi problem for characteristically loaded hyperbolic-parabolic equation with variable coefficients 变系数特征载荷双曲抛物方程Tricomi问题的模拟
IF 0.5
Ufa Mathematical Journal Pub Date : 2017-01-01 DOI: 10.13108/2017-9-2-92
K. U. Khubiev
{"title":"Analogue of Tricomi problem for characteristically loaded hyperbolic-parabolic equation with variable coefficients","authors":"K. U. Khubiev","doi":"10.13108/2017-9-2-92","DOIUrl":"https://doi.org/10.13108/2017-9-2-92","url":null,"abstract":"","PeriodicalId":43644,"journal":{"name":"Ufa Mathematical Journal","volume":"10 1","pages":"92-101"},"PeriodicalIF":0.5,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88517571","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: 5
Lower bounds for the area of the image of a circle 圆图像面积的下界
IF 0.5
Ufa Mathematical Journal Pub Date : 2017-01-01 DOI: 10.13108/2017-9-2-55
B. Klishchuk, R. Salimov
{"title":"Lower bounds for the area of the image of a circle","authors":"B. Klishchuk, R. Salimov","doi":"10.13108/2017-9-2-55","DOIUrl":"https://doi.org/10.13108/2017-9-2-55","url":null,"abstract":"In the work we consider Q-homeomorphisms w.r.t p-modulus on the complex plane as p > 2. We obtain a lower bound for the area of the image of a circle under such mappings. We solve the extremal problem on minimizing the functional of the area of the image of a circle.","PeriodicalId":43644,"journal":{"name":"Ufa Mathematical Journal","volume":"27 1","pages":"55-61"},"PeriodicalIF":0.5,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82814463","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: 12
“Quantizations” of isomonodromic Hamilton system $H^{frac{7}{2}+1}$ 等单调Hamilton系统$H^{frac{7}{2}+1}$的“量子化
IF 0.5
Ufa Mathematical Journal Pub Date : 2017-01-01 DOI: 10.13108/2017-9-4-97
V. A. Pavlenko, B. Suleimanov
{"title":"“Quantizations” of isomonodromic Hamilton system $H^{frac{7}{2}+1}$","authors":"V. A. Pavlenko, B. Suleimanov","doi":"10.13108/2017-9-4-97","DOIUrl":"https://doi.org/10.13108/2017-9-4-97","url":null,"abstract":"","PeriodicalId":43644,"journal":{"name":"Ufa Mathematical Journal","volume":"1 1","pages":"97-107"},"PeriodicalIF":0.5,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73226279","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: 4
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