Pub Date : 2019-01-01DOI: 10.32523/2077-9879-2019-10-3-68-83
N. Tleukhanova, K. Sadykova
{"title":"O'NEIL-TYPE INEQUALITIES FOR CONVOLUTIONS IN ANISOTROPIC LORENTZ SPACES","authors":"N. Tleukhanova, K. Sadykova","doi":"10.32523/2077-9879-2019-10-3-68-83","DOIUrl":"https://doi.org/10.32523/2077-9879-2019-10-3-68-83","url":null,"abstract":"","PeriodicalId":44248,"journal":{"name":"Eurasian Mathematical Journal","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69697076","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}
Pub Date : 2019-01-01DOI: 10.32523/2077-9879-2019-10-4-14-23
V. Burenkov, T. Tararykova
{"title":"NECESSARY AND SUFFICIENT CONDITIONS OF COMPACTNESS OF CERTAIN EMBEDDINGS OF SOBOLEV SPACES","authors":"V. Burenkov, T. Tararykova","doi":"10.32523/2077-9879-2019-10-4-14-23","DOIUrl":"https://doi.org/10.32523/2077-9879-2019-10-4-14-23","url":null,"abstract":"","PeriodicalId":44248,"journal":{"name":"Eurasian Mathematical Journal","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69697173","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}
Pub Date : 2019-01-01DOI: 10.32523/2077-9879-2019-10-4-63-74
E. Liflyand
{"title":"MULTIDIMENSIONAL FOURIER TRANSFORMS ON AN AMALGAM TYPE SPACE","authors":"E. Liflyand","doi":"10.32523/2077-9879-2019-10-4-63-74","DOIUrl":"https://doi.org/10.32523/2077-9879-2019-10-4-63-74","url":null,"abstract":"","PeriodicalId":44248,"journal":{"name":"Eurasian Mathematical Journal","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69697284","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}
Pub Date : 2019-01-01DOI: 10.32523/2077-9879-2019-10-2-30-36
M. Bukenov, D. Azimova
{"title":"ESTIMATES FOR MAXWELL VISCOELASTIC MEDIUM \"IN TENSION-RATES\"","authors":"M. Bukenov, D. Azimova","doi":"10.32523/2077-9879-2019-10-2-30-36","DOIUrl":"https://doi.org/10.32523/2077-9879-2019-10-2-30-36","url":null,"abstract":"","PeriodicalId":44248,"journal":{"name":"Eurasian Mathematical Journal","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69696665","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}
Pub Date : 2019-01-01DOI: 10.32523/2077-9879-2019-10-2-49-64
F. Joveini, M. Akbari
{"title":"SCHWARZ PROBLEM IN LENS AND HALF LENS","authors":"F. Joveini, M. Akbari","doi":"10.32523/2077-9879-2019-10-2-49-64","DOIUrl":"https://doi.org/10.32523/2077-9879-2019-10-2-49-64","url":null,"abstract":"","PeriodicalId":44248,"journal":{"name":"Eurasian Mathematical Journal","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69696800","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}
Pub Date : 2019-01-01DOI: 10.32523/2077-9879-2019-10-4-34-46
A. Kalybay, Z. Keulimzhayeva, R. Oinarov
{"title":"ON A KUDRYAVTSEV TYPE FUNCTION SPACE","authors":"A. Kalybay, Z. Keulimzhayeva, R. Oinarov","doi":"10.32523/2077-9879-2019-10-4-34-46","DOIUrl":"https://doi.org/10.32523/2077-9879-2019-10-4-34-46","url":null,"abstract":"","PeriodicalId":44248,"journal":{"name":"Eurasian Mathematical Journal","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69697236","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}
Pub Date : 2018-12-04DOI: 10.32523/2077-9879-2020-11-1-86-94
V. Kurbatov, I. Kurbatova
Let $A$ be a square complex matrix, $z_1$, ..., $z_{n}inmathbb C$ be (possibly repetitive) points of interpolation, $f$ be analytic in a neighborhood of the convex hull of the union of the spectrum of $A$ and the points $z_1$, ..., $z_{n}$, and $p$ be the interpolation polynomial of $f$, constructed by the points $z_1$, ..., $z_{n}$. It is proved that under these assumptions $$Vert f(A)-p(A)Vertlefrac1{n!} max_{tin[0,1];,muintext{co}{z_1,z_{2},dots,z_{n}}}biglVertOmega(A)f^{{(n)}} bigl((1-t)mumathbf1+tAbigr)bigrVert,$$ where $Omega(z)=prod_{k=1}^n(z-z_k)$.
{"title":"AN ESTIMATE OF APPROXIMATION OF A MATRIX-VALUED FUNCTION BY AN INTERPOLATION POLYNOMIAL","authors":"V. Kurbatov, I. Kurbatova","doi":"10.32523/2077-9879-2020-11-1-86-94","DOIUrl":"https://doi.org/10.32523/2077-9879-2020-11-1-86-94","url":null,"abstract":"Let $A$ be a square complex matrix, $z_1$, ..., $z_{n}inmathbb C$ be (possibly repetitive) points of interpolation, $f$ be analytic in a neighborhood of the convex hull of the union of the spectrum of $A$ and the points $z_1$, ..., $z_{n}$, and $p$ be the interpolation polynomial of $f$, constructed by the points $z_1$, ..., $z_{n}$. It is proved that under these assumptions $$Vert f(A)-p(A)Vertlefrac1{n!} max_{tin[0,1];,muintext{co}{z_1,z_{2},dots,z_{n}}}biglVertOmega(A)f^{{(n)}} bigl((1-t)mumathbf1+tAbigr)bigrVert,$$ where $Omega(z)=prod_{k=1}^n(z-z_k)$.","PeriodicalId":44248,"journal":{"name":"Eurasian Mathematical Journal","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2018-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47798271","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}
Pub Date : 2018-02-22DOI: 10.32523/2077-9879-2020-11-3-66-78
B. Kulpeshov, S. Sudoplatov
We describe Rudin-Keisler preorders and distribution functions of numbers of limit models for quite o-minimal Ehrenfeucht theories. Decomposition formulas for these distributions are found.
{"title":"DISTRIBUTIONS OF COUNTABLE MODELS OF QUITE O-MINIMAL EHRENFEUCHT THEORIES","authors":"B. Kulpeshov, S. Sudoplatov","doi":"10.32523/2077-9879-2020-11-3-66-78","DOIUrl":"https://doi.org/10.32523/2077-9879-2020-11-3-66-78","url":null,"abstract":"We describe Rudin-Keisler preorders and distribution functions of numbers of limit models for quite o-minimal Ehrenfeucht theories. Decomposition formulas for these distributions are found.","PeriodicalId":44248,"journal":{"name":"Eurasian Mathematical Journal","volume":" ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2018-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48001387","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}
Pub Date : 1900-01-01DOI: 10.32523/2077-9879-2021-12-3-09-18
W. Admasu, E. Galakhov, O. Salieva
{"title":"NONEXISTENCE OF NONTRIVIAL WEAK SOLUTIONS OF SOME NONLINEAR INEQUALITIES WITH INTEGER POWER OF THE LAPLACIAN","authors":"W. Admasu, E. Galakhov, O. Salieva","doi":"10.32523/2077-9879-2021-12-3-09-18","DOIUrl":"https://doi.org/10.32523/2077-9879-2021-12-3-09-18","url":null,"abstract":"","PeriodicalId":44248,"journal":{"name":"Eurasian Mathematical Journal","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69697626","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}
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