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Communications of the Korean Mathematical Society最新文献

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ON THE IMPROVED REGULARITY CRITERION OF THE SOLUTIONS TO THE NAVIER-STOKES EQUATIONS navier-stokes方程解的改进正则性判据
IF 0.6
Communications of the Korean Mathematical Society Pub Date : 2020-01-01 DOI: 10.4134/CKMS.C190019
S. Gala
{"title":"ON THE IMPROVED REGULARITY CRITERION OF THE SOLUTIONS TO THE NAVIER-STOKES EQUATIONS","authors":"S. Gala","doi":"10.4134/CKMS.C190019","DOIUrl":"https://doi.org/10.4134/CKMS.C190019","url":null,"abstract":"This note deals with the question of the regularity of (Leray) weak solutions of the Navier-Stokes equations in terms of the pressure. This criterion improves on the existing results.","PeriodicalId":45637,"journal":{"name":"Communications of the Korean Mathematical Society","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70436566","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: 2
ON A NEW CLASS OF FUNCTIONS RELATED WITH MITTAG-LEFFLER AND WRIGHT FUNCTIONS AND THEIR PROPERTIES 与mittag-leffler和Wright函数相关的一类新的函数及其性质
IF 0.6
Communications of the Korean Mathematical Society Pub Date : 2020-01-01 DOI: 10.4134/CKMS.C200022
D. Bansal, K. Mehrez
{"title":"ON A NEW CLASS OF FUNCTIONS RELATED WITH MITTAG-LEFFLER AND WRIGHT FUNCTIONS AND THEIR PROPERTIES","authors":"D. Bansal, K. Mehrez","doi":"10.4134/CKMS.C200022","DOIUrl":"https://doi.org/10.4134/CKMS.C200022","url":null,"abstract":"","PeriodicalId":45637,"journal":{"name":"Communications of the Korean Mathematical Society","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70437978","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: 3
CONFORMAL HEMI-SLANT SUBMERSIONS FROM ALMOST HERMITIAN MANIFOLDS 几乎厄米流形的共形半倾斜淹没
IF 0.6
Communications of the Korean Mathematical Society Pub Date : 2020-01-01 DOI: 10.4134/CKMS.C190448
Sumeet Kumar, Sushil Kumar, S. Pandey, R. Prasad
{"title":"CONFORMAL HEMI-SLANT SUBMERSIONS FROM ALMOST HERMITIAN MANIFOLDS","authors":"Sumeet Kumar, Sushil Kumar, S. Pandey, R. Prasad","doi":"10.4134/CKMS.C190448","DOIUrl":"https://doi.org/10.4134/CKMS.C190448","url":null,"abstract":". In this paper, our main objective is to introduce the notion of conformal hemi-slant submersions from almost Hermitian manifolds onto Riemannian manifolds as a generalized case of conformal anti-invariant submersions, conformal semi-invariant submersions and conformal slant submersions. We mainly focus on conformal hemi-slant submersions from K¨ahler manifolds. During this manner, we tend to study and investigate integrability of the distributions which are arisen from the definition of the submersions and the geometry of leaves of such distributions. Moreover, we tend to get necessary and sufficient conditions for these submersions to be totally geodesic for such manifolds. We also provide some quality examples of conformal hemi-slant submersions.","PeriodicalId":45637,"journal":{"name":"Communications of the Korean Mathematical Society","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70438032","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
RELATION BETWEEN KNEADING MATRICES OF A MAP AND ITS ITERATES 映射的揉捏矩阵与其迭代之间的关系
IF 0.6
Communications of the Korean Mathematical Society Pub Date : 2020-01-01 DOI: 10.4134/CKMS.C190255
C. Gopalakrishna, Murugan Veerapazham
{"title":"RELATION BETWEEN KNEADING MATRICES OF A MAP AND ITS ITERATES","authors":"C. Gopalakrishna, Murugan Veerapazham","doi":"10.4134/CKMS.C190255","DOIUrl":"https://doi.org/10.4134/CKMS.C190255","url":null,"abstract":"","PeriodicalId":45637,"journal":{"name":"Communications of the Korean Mathematical Society","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70437481","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
PROPERTIES OF k th -ORDER (SLANT TOEPLITZ + SLANT HANKEL) OPERATORS ON H 2 () h2()上k阶(斜TOEPLITZ +斜HANKEL)算子的性质
IF 0.6
Communications of the Korean Mathematical Society Pub Date : 2020-01-01 DOI: 10.4134/CKMS.C190403
Anuradha Gupta, B. Gupta
{"title":"PROPERTIES OF k th -ORDER (SLANT TOEPLITZ + SLANT HANKEL) OPERATORS ON H 2 ()","authors":"Anuradha Gupta, B. Gupta","doi":"10.4134/CKMS.C190403","DOIUrl":"https://doi.org/10.4134/CKMS.C190403","url":null,"abstract":"","PeriodicalId":45637,"journal":{"name":"Communications of the Korean Mathematical Society","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70437965","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
TOPOLOGICAL STABILITY IN HYPERSPACE DYNAMICAL SYSTEMS 超空间动力系统的拓扑稳定性
IF 0.6
Communications of the Korean Mathematical Society Pub Date : 2020-01-01 DOI: 10.4134/CKMS.C200058
Namjip Koo, Hyunhee Lee, Nyamdavaa Tsegmid
{"title":"TOPOLOGICAL STABILITY IN HYPERSPACE DYNAMICAL SYSTEMS","authors":"Namjip Koo, Hyunhee Lee, Nyamdavaa Tsegmid","doi":"10.4134/CKMS.C200058","DOIUrl":"https://doi.org/10.4134/CKMS.C200058","url":null,"abstract":"","PeriodicalId":45637,"journal":{"name":"Communications of the Korean Mathematical Society","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70438255","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
BLOW-UP TIME AND BLOW-UP RATE FOR PSEUDO-PARABOLIC EQUATIONS WITH WEIGHTED SOURCE 加权源伪抛物方程的爆破时间和爆破率
IF 0.6
Communications of the Korean Mathematical Society Pub Date : 2020-01-01 DOI: 10.4134/CKMS.C200035
Huafei Di, Y. Shang
{"title":"BLOW-UP TIME AND BLOW-UP RATE FOR PSEUDO-PARABOLIC EQUATIONS WITH WEIGHTED SOURCE","authors":"Huafei Di, Y. Shang","doi":"10.4134/CKMS.C200035","DOIUrl":"https://doi.org/10.4134/CKMS.C200035","url":null,"abstract":"In this paper, we are concerned with the blow-up phenomena for a class of pseudo-parabolic equations with weighted source ut−4u− 4ut = a(x)f(u) subject to Dirichlet (or Neumann) boundary conditions in any smooth bounded domain Ω ⊂ Rn (n ≥ 1). Firstly, we obtain the upper and lower bounds for blow-up time of solutions to these problems. Moreover, we also give the estimates of blow-up rate of solutions under some suitable conditions. Finally, three models are presented to illustrate our main results. In some special cases, we can even get some exact values of blow-up time and blow-up rate.","PeriodicalId":45637,"journal":{"name":"Communications of the Korean Mathematical Society","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70438386","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
GENERIC LIGHTLIKE SUBMANIFOLDS OF AN INDEFINITE TRANS-SASAKIAN MANIFOLD WITH A NON-SYMMETRIC NON-METRIC CONNECTION OF TYPE (ℓ, m) 具有非对称非度量连接(l, m)的不定TRANS-SASAKIAN流形的一般类光子流形
IF 0.6
Communications of the Korean Mathematical Society Pub Date : 2020-01-01 DOI: 10.4134/CKMS.C200055
Chul Woo Lee, Jae Won Lee
{"title":"GENERIC LIGHTLIKE SUBMANIFOLDS OF AN INDEFINITE TRANS-SASAKIAN MANIFOLD WITH A NON-SYMMETRIC NON-METRIC CONNECTION OF TYPE (ℓ, m)","authors":"Chul Woo Lee, Jae Won Lee","doi":"10.4134/CKMS.C200055","DOIUrl":"https://doi.org/10.4134/CKMS.C200055","url":null,"abstract":"Jin [7] defined a new connection on semi-Riemannian manifolds, which is a non-symmetric and non-metric connection. He said that this connection is an (`, m)-type connection. Jin also studied lightlike hypersurfaces of an indefinite trans-Sasakian manifold with an (`,m)type connection in [7]. We study further the geometry of this subject. In this paper, we study generic lightlike submanifolds of an indefinite trans-Sasakian manifold endowed with an (`,m)-type connection.","PeriodicalId":45637,"journal":{"name":"Communications of the Korean Mathematical Society","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70438544","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
BIHARMONIC CURVES IN 3-DIMENSIONAL LORENTZIAN SASAKIAN SPACE FORMS 三维洛伦兹sasaki空间形式中的双调和曲线
IF 0.6
Communications of the Korean Mathematical Society Pub Date : 2020-01-01 DOI: 10.4134/CKMS.C190393
J. Lee
{"title":"BIHARMONIC CURVES IN 3-DIMENSIONAL LORENTZIAN SASAKIAN SPACE FORMS","authors":"J. Lee","doi":"10.4134/CKMS.C190393","DOIUrl":"https://doi.org/10.4134/CKMS.C190393","url":null,"abstract":"","PeriodicalId":45637,"journal":{"name":"Communications of the Korean Mathematical Society","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70437854","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
MODULE DERIVATIONS ON COMMUTATIVE BANACH MODULES 交换巴拿赫模上的模导
IF 0.6
Communications of the Korean Mathematical Society Pub Date : 2020-01-01 DOI: 10.4134/CKMS.C200020
M. Amini, A. Bodaghi, B. Shojaee
{"title":"MODULE DERIVATIONS ON COMMUTATIVE BANACH MODULES","authors":"M. Amini, A. Bodaghi, B. Shojaee","doi":"10.4134/CKMS.C200020","DOIUrl":"https://doi.org/10.4134/CKMS.C200020","url":null,"abstract":"","PeriodicalId":45637,"journal":{"name":"Communications of the Korean Mathematical Society","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70437913","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: 2
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