Pub Date : 2019-03-01DOI: 10.52737/18291163-2019.11.2-1-2
A. Nersessian
{"title":"A correction to the article \"On an Over-Convergence Phenomenon for Fourier Series. Basic Approach\"","authors":"A. Nersessian","doi":"10.52737/18291163-2019.11.2-1-2","DOIUrl":"https://doi.org/10.52737/18291163-2019.11.2-1-2","url":null,"abstract":"","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43832618","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 : 2019-03-01DOI: 10.52737/18291163-2019.11.1-1-14
Panwang Wang, Zongguang Liu
In this paper, we study the boundedness of the fractional maximal operator and fractional integral operator on the variable exponent Morrey spaces defined over spaces (X,d,μ) of homogeneous type.
{"title":"Fractional maximal and integral operators in variable exponent Morrey spaces","authors":"Panwang Wang, Zongguang Liu","doi":"10.52737/18291163-2019.11.1-1-14","DOIUrl":"https://doi.org/10.52737/18291163-2019.11.1-1-14","url":null,"abstract":"In this paper, we study the boundedness of the fractional maximal operator and fractional integral operator on the variable exponent Morrey spaces defined over spaces (X,d,μ) of homogeneous type.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2019-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45047024","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 : 2018-12-10DOI: 10.52737/18291163-2018.10.10-1-15
M. Norouzi, A. Asadi, Y. Jun
The notion of a subnexus based on ${mathcal{N}}$-function (briefly, ${mathcal{N}}$-subnexus) is introduced, and related properties are investigated. Also, the notions of ${mathcal{N}}$-subnexus of type $(alpha, beta)$, where $(alpha, beta)$ is $(in, in)$, $(in, q)$, $(in, in! vee , {q})$, $(q, in)$, $(q,q)$, $(q, in! vee , {q})$, $(overline{in}, overline{in})$ and $(overline{in}, overline{in} vee overline{q})$, are introduced, and their basic properties are investigated. Conditions for an ${mathcal{N}}$-structure to be an ${mathcal{N}}$-subnexus of type $(q, in! vee , {q})$ are given, and characterizations of ${mathcal{N}}$-subnexus of type $(in, in! vee , {q})$ and $(overline{in}, overline{in} vee overline{q})$ are provided. Homomorphic image and preimage of ${mathcal{N}}$-subnexus are discussed.
{"title":"Subnexuses Based on N-structures","authors":"M. Norouzi, A. Asadi, Y. Jun","doi":"10.52737/18291163-2018.10.10-1-15","DOIUrl":"https://doi.org/10.52737/18291163-2018.10.10-1-15","url":null,"abstract":"The notion of a subnexus based on ${mathcal{N}}$-function (briefly, ${mathcal{N}}$-subnexus) is introduced, and related properties are investigated. Also, the notions of ${mathcal{N}}$-subnexus of type $(alpha, beta)$, where $(alpha, beta)$ is $(in, in)$, $(in, q)$, $(in, in! vee , {q})$, $(q, in)$, $(q,q)$, $(q, in! vee , {q})$, $(overline{in}, overline{in})$ and $(overline{in}, overline{in} vee overline{q})$, are introduced, and their basic properties are investigated. Conditions for an ${mathcal{N}}$-structure to be an ${mathcal{N}}$-subnexus of type $(q, in! vee , {q})$ are given, and characterizations of ${mathcal{N}}$-subnexus of type $(in, in! vee , {q})$ and $(overline{in}, overline{in} vee overline{q})$ are provided. Homomorphic image and preimage of ${mathcal{N}}$-subnexus are discussed.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48595893","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 : 2018-12-10DOI: 10.52737/18291163-2018.10.11-1-15
K. Noor, Nasir Abbas Khan, Q. Z. Ahmad, N. Khan, Y. L. Chung
In the present investigation, a new general subclass $M_{alpha ,beta }left( phi right) $ of analytic functions is defined. Some subordination relations, inclusion relations, integral preserving properties, convolution properties and some other interesting properties are studied.
{"title":"On Certain Subclass of Analytic Functions","authors":"K. Noor, Nasir Abbas Khan, Q. Z. Ahmad, N. Khan, Y. L. Chung","doi":"10.52737/18291163-2018.10.11-1-15","DOIUrl":"https://doi.org/10.52737/18291163-2018.10.11-1-15","url":null,"abstract":"In the present investigation, a new general subclass $M_{alpha ,beta }left( phi right) $ of analytic functions is defined. Some subordination relations, inclusion relations, integral preserving properties, convolution properties and some other interesting properties are studied.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46214331","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 : 2018-07-09DOI: 10.52737/18291163-2018.10.6-1-15
K. Navasardyan
In this paper we discuss the uniqueness property of a summation method for multiple series with respect to Vilenkin and generalized Haar systems. It is proved that if the multiple series with respect to these systems is a.e. summable by that method to an integrable function on $[0,1)^d$ and satisfies an extra condition, then it is the Fourier series of this function.
{"title":"Uniqueness Theorems for Multiple Series by Vilenkin and Generalized Haar Systems","authors":"K. Navasardyan","doi":"10.52737/18291163-2018.10.6-1-15","DOIUrl":"https://doi.org/10.52737/18291163-2018.10.6-1-15","url":null,"abstract":"In this paper we discuss the uniqueness property of a summation method for multiple series with respect to Vilenkin and generalized Haar systems. It is proved that if the multiple series with respect to these systems is a.e. summable by that method to an integrable function on $[0,1)^d$ and satisfies an extra condition, then it is the Fourier series of this function.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45257415","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 : 2018-06-19DOI: 10.52737/18291163-2018.10.5-1-20
L. Khachatryan, B. Nahapetian
We introduce sufficiently wide classes of non--linear functionals preserving normal (Gaussian) distribution and establish various conditions under which a sequence of such functionals is asymptotically normal. As one of a consequence we obtain a generalization and sharpening of known results on the central limit theorem for weighted sums (linear functionals) of independent random variables.
{"title":"Non-linear Functionals Preserving Normal Distribution and Their Asymptotic Normality","authors":"L. Khachatryan, B. Nahapetian","doi":"10.52737/18291163-2018.10.5-1-20","DOIUrl":"https://doi.org/10.52737/18291163-2018.10.5-1-20","url":null,"abstract":"We introduce sufficiently wide classes of non--linear functionals preserving normal (Gaussian) distribution and establish various conditions under which a sequence of such functionals is asymptotically normal. As one of a consequence we obtain a generalization and sharpening of known results on the central limit theorem for weighted sums (linear functionals) of independent random variables.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49360415","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 : 2018-06-19DOI: 10.52737/18291163-2018.10.4-1-85
Yu. M. Movsisyan
This survey article illustrates many important current trends and perspectives for the field including classification of hyperidentities, characterizations of algebras with hyperidentities, functional representations of free algebras, structure results for bilattices, categorical questions and applications. However, the paper contains new results and open problems, too.
{"title":"Hyperidentities and Related Concepts, II","authors":"Yu. M. Movsisyan","doi":"10.52737/18291163-2018.10.4-1-85","DOIUrl":"https://doi.org/10.52737/18291163-2018.10.4-1-85","url":null,"abstract":"This survey article illustrates many important current trends and perspectives for the field including classification of hyperidentities, characterizations of algebras with hyperidentities, functional representations of free algebras, structure results for bilattices, categorical questions and applications. However, the paper contains new results and open problems, too.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49427163","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 : 2018-06-01DOI: 10.52737/18291163-2018.10.1-1-14
M. Beheshti, M. Azhini
In this paper, by using generalized viscosity mappings, we prove two strong convergence theorems for finding fixed points of a nonexpansive mapping which is also a unique solution of the variational inequality. Our results extend and improve the recent ones announced by some authors.
{"title":"Generalized Viscosity Approximation Methods of Ishikawa Type for Nonexpansive Mappings in Hilbert Spaces","authors":"M. Beheshti, M. Azhini","doi":"10.52737/18291163-2018.10.1-1-14","DOIUrl":"https://doi.org/10.52737/18291163-2018.10.1-1-14","url":null,"abstract":"In this paper, by using generalized viscosity mappings, we prove two strong convergence theorems for finding fixed points of a nonexpansive mapping which is also a unique solution of the variational inequality. Our results extend and improve the recent ones announced by some authors.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46981841","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 : 2018-06-01DOI: 10.52737/18291163-2018.10.2-1-11
M. Alaeiyan, A. Mehrabani
Perfect coloring is a generalization of the notion of completely regular codes, given by Delsarte. A perfect $m$-coloring of a graph $G$ with $m$ colors is a partition of the vertex set of $G$ into m parts $A_1$, $dots$, $A_m$ such that, for all $ i,jin lbrace 1,cdots ,mrbrace $, every vertex of $A_i$ is adjacent to the same number of vertices, namely, $a_{ij}$ vertices, of $A_j$ . The matrix $A=(a_{ij})_{i,jin lbrace 1,cdots ,mrbrace }$ is called the parameter matrix. We study the perfect 3-colorings (also known as the equitable partitions into three parts) of the cubic graphs of order $8$. In particular, we classify all the realizable parameter matrices of perfect 3-colorings for the cubic graphs of order 8.
{"title":"Perfect 3-colorings of Cubic Graphs of Order 8","authors":"M. Alaeiyan, A. Mehrabani","doi":"10.52737/18291163-2018.10.2-1-11","DOIUrl":"https://doi.org/10.52737/18291163-2018.10.2-1-11","url":null,"abstract":"Perfect coloring is a generalization of the notion of completely regular codes, given by Delsarte. A perfect $m$-coloring of a graph $G$ with $m$ colors is a partition of the vertex set of $G$ into m parts $A_1$, $dots$, $A_m$ such that, for all $ i,jin lbrace 1,cdots ,mrbrace $, every vertex of $A_i$ is adjacent to the same number of vertices, namely, $a_{ij}$ vertices, of $A_j$ . The matrix $A=(a_{ij})_{i,jin lbrace 1,cdots ,mrbrace }$ is called the parameter matrix. We study the perfect 3-colorings (also known as the equitable partitions into three parts) of the cubic graphs of order $8$. In particular, we classify all the realizable parameter matrices of perfect 3-colorings for the cubic graphs of order 8.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49345845","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 : 2016-06-01DOI: 10.52737/18291163-2018.10.3-1-10
N. Kehayopulu
Most of the results on semigroups or ordered semigroups can be transferred to hypersemigroups or to ordered hypersemigroups, respectively. The same, if we replace the word "semigroup" by "groupoid", "hypersemigroup" by "hypergroupoid". We show the way we pass from fuzzy ordered semigroups to fuzzy hypersemigroups.
{"title":"Fuzzy Right (Left) Ideals in Hypergroupoids and Fuzzy Bi-ideals in Hypersemigroups","authors":"N. Kehayopulu","doi":"10.52737/18291163-2018.10.3-1-10","DOIUrl":"https://doi.org/10.52737/18291163-2018.10.3-1-10","url":null,"abstract":"Most of the results on semigroups or ordered semigroups can be transferred to hypersemigroups or to ordered hypersemigroups, respectively. The same, if we replace the word \"semigroup\" by \"groupoid\", \"hypersemigroup\" by \"hypergroupoid\". We show the way we pass from fuzzy ordered semigroups to fuzzy hypersemigroups.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":"129 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70929401","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}