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Approximation of Generalized Biaxisymmetric Potentials in $L^{beta}$-norm L^{beta}$-范数中广义双轴对称势的逼近
IF 0.7 Q1 MATHEMATICS Pub Date : 2023-07-30 DOI: 10.29020/nybg.ejpam.v16i3.4815
Devendra Kumar
Let $F$ be a real valued generalized biaxisymmetric potential (GBASP) in $L^{beta}$ on $S_{R}$, the open sphere of radius $R$ about the origin. In this paper we have obtained the necessary and sufficient conditions on the rate of decrease of a sequence of best harmonic polynomial approximates to $F$ such that $F$ is harmonically continues as an entire function GBASP and determine their $(p,q)$-order and generalized $(p,q)$-type with respect to proximate order $rho(r)$.
设$F$为关于原点的半径为$R$的开球$L^{beta}$上$S_{R}$上的实值广义双轴对称势(GBASP)。本文得到了一组最优调和多项式逼近$F$的减量率的充要条件,使得$F$作为一个整体函数GBASP是调和连续的,并确定了它们相对于近似阶$rho(r)$的$(p,q)$ -阶和广义$(p,q)$型。
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引用次数: 0
$b^{ast}_{I}$ Sets and $b^{ast}_{I}$-Compact Ideal Spaces $b^{ast}_{I}$集和$b^}_{I}$-紧致理想空间
IF 0.7 Q1 MATHEMATICS Pub Date : 2023-07-30 DOI: 10.29020/nybg.ejpam.v16i3.4855
M. P. Baldado
We came up with the concept b∗-open set which has stricter condition with respect to the notion b-open sets, introduced by Andrijevic [2] as a generalization of Levine’s [7] generalized closed sets. The condition imposes equality instead of inclusion. In this study, we gave some important properties of b∗-open sets with respect to an ideal, and b∗-compact spaces.
我们提出了概念b*-开集,它相对于概念b-开集具有更严格的条件,由Andrijevic[2]作为Levine[7]广义闭集的推广引入。这个条件要求平等而不是包容。在这项研究中,我们给出了b*-开集关于理想和b*-紧空间的一些重要性质。
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引用次数: 0
Localization in the Category $COMP(G_{r}(A-Mod))$ of Complex associated to the Category $G_{r}(A-Mod)$ of Graded left $A-$modules over a Graded Ring 与分级左$A-$模的分级左$A-$模的分类$G_{r}(A- mod)$相关联的复类$COMP(G_{r}(A- mod))$的定位
IF 0.7 Q1 MATHEMATICS Pub Date : 2023-07-30 DOI: 10.29020/nybg.ejpam.v16i3.4753
Ahmed Ould Chbih, Mohamed Ben Faraj Ben Maaouia, M. Sanghare
The main results of this paper are : If $A=displaystyle{bigoplus_{ninmathbb{Z}}}A_{n}$ is a graded duo-ring, $S_{H}$ is a partformed of regulars homogeneous elements of $A$, $overline{S}_{H}$ is the homogeneous multiplicativelyclosed subset of $A$generated by $S_{H}$, then: begin{enumerate}item The relation $C_{H}(-) :G_{r}(overline{S}_{H}^{-1}A-Mod)longrightarrow COMP(G_{r}(overline{S}_{H}^{-1}A-Mod))$ which that for all graded left$overline{S}_{H}^{-1}A-$module $overline{S}_{H}^{-1}M$ of $G_{r}(overline{S}_{H}^{-1}A-Mod)$we correspond the associate complex sequence $(overline{S}_{H}^{-1}M)_{*}$ to a graded $overline{S}_{H}^{-1}A-$module$overline{S}_{H}^{-1}M$ and for all graded morphism of graded left $overline{S}_{H}^{-1}A-$modules$overline{S}_{H}^{-1}f : overline{S}_{H}^{-1}Mlongrightarrow overline{S}_{H}^{-1}N$ of degree $k$we correspond the associated complex chain$(overline{S}_{H}^{-1}f)_{*}^{k}$ to a morphism of graded left $overline{S}_{H}^{-1}A-$module$overline{S}_{H}^{-1}f : overline{S}_{H}^{-1}Mlongrightarrow overline{S}_{H}^{-1}N$is an additively exact covariant functor.item The relation $(C_{H}circoverline{S}_{H}^{-1})(-) :G_{r}(A-Mod)longrightarrow COMP(G_{r}(overline{S}_{H}^{-1}A-Mod))$ which that for all graded left$A-$module $M$ of $G_{r}(A-Mod)$we correspond the associate complex sequence $(C_{H}circoverline{S}_{H}^{-1})(M)=(overline{S}_{H}^{-1}M)_{*}$ to a graded $A-$module$M$ and for all graded morphism of graded left $A-$modules$f : Mlongrightarrow N$ of degree $k$we correspond the associated complex chain$(C_{H}circoverline{S}_{H}^{-1})(f)=(overline{S}_{H}^{-1}f)_{*}^{k}$ to a morphism of graded left $A-$module$f : Mlongrightarrow N$is an additively exact covariant functor. item noindent For all $nin mathbb{Z}$ fixed and for all $ M in G_{r}(A-Mod)$ we have:$$overline{S}^{-1}_{H}((H_{n}circ C)(M))cong H_{n}(C_{H}circ overline{S}^{-1}_{H})(M)).$$end{enumerate}
本文的主要研究成果有: 如果$A=displaystyle{bigoplus_{ninmathbb{Z}}}A_{n}$是一个渐变的双环,$S_{H}$是$A$的正则齐次元素组成的部分,$overline{S}_{H}$是$S_{H}$生成的$A$的齐次乘闭子集,则: begin{enumerate}item 关系 $C_{H}(-) :G_{r}(overline{S}_{H}^{-1}A-Mod)longrightarrow COMP(G_{r}(overline{S}_{H}^{-1}A-Mod))$ 哪个是所有被评分的左边的$overline{S}_{H}^{-1}A-$模块 $overline{S}_{H}^{-1}M$ 的 $G_{r}(overline{S}_{H}^{-1}A-Mod)$我们对应于关联复序列 $(overline{S}_{H}^{-1}M)_{*}$ 到一个分级 $overline{S}_{H}^{-1}A-$模块$overline{S}_{H}^{-1}M$ 对于所有的渐变左态射 $overline{S}_{H}^{-1}A-$模块$overline{S}_{H}^{-1}f : overline{S}_{H}^{-1}Mlongrightarrow overline{S}_{H}^{-1}N$ 程度 $k$对应相应的复链$(overline{S}_{H}^{-1}f)_{*}^{k}$ 到渐变的左态射 $overline{S}_{H}^{-1}A-$模块$overline{S}_{H}^{-1}f : overline{S}_{H}^{-1}Mlongrightarrow overline{S}_{H}^{-1}N$是一个加性精确协变函子。item 关系 $(C_{H}circoverline{S}_{H}^{-1})(-) :G_{r}(A-Mod)longrightarrow COMP(G_{r}(overline{S}_{H}^{-1}A-Mod))$ 哪个是所有被评分的左边的$A-$模块 $M$ 的 $G_{r}(A-Mod)$我们对应于关联复序列 $(C_{H}circoverline{S}_{H}^{-1})(M)=(overline{S}_{H}^{-1}M)_{*}$ 到一个分级 $A-$模块$M$ 对于所有的渐变左态射 $A-$模块$f : Mlongrightarrow N$ 程度 $k$对应相应的复链$(C_{H}circoverline{S}_{H}^{-1})(f)=(overline{S}_{H}^{-1}f)_{*}^{k}$ 到渐变的左态射 $A-$模块$f : Mlongrightarrow N$是一个加性精确协变函子。 item noindent 对于所有$nin mathbb{Z}$固定和所有$ M in G_{r}(A-Mod)$,我们有:$$overline{S}^{-1}_{H}((H_{n}circ C)(M))cong H_{n}(C_{H}circ overline{S}^{-1}_{H})(M)).$$end{enumerate}
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引用次数: 0
Characterizations of Some Topological Spaces 一些拓扑空间的刻画
Q1 MATHEMATICS Pub Date : 2023-07-30 DOI: 10.29020/nybg.ejpam.v16i3.4737
Chawalit Boonpok, Montri Thongmoon
This paper is concerned with the concepts of some topological spaces. Firstly, we introduce the notions of δs(Λ, p)-open sets. Some properties concerning δs(Λ, p)-open sets are discussed. Secondly, the concept of s(Λ, p)-connected spaces is introduced. Moreover, we give several characterizations of s(Λ, p)-connected spaces by utilizing δs(Λ, p)-open sets. Thirdly, we apply the notion of s(Λ, p)-open sets to present and study new classes of spaces called s(Λ, p)-regular spaces and s(Λ, p)-normal spaces. Especially, some characterizations of s(Λ, p)-regular spaces and s(Λ, p)-normal spaces are established. Fourthly, we introduce and investigate the concepts of s(Λ, p)-T2 spaces and s(Λ, p)-Urysohn spaces. Finally, the notion of S(Λ, p)-closed spaces is studied. Basic properties and characterizations of S(Λ, p)-closed spaces are considered.
本文讨论了一些拓扑空间的概念。首先,我们引入δs(Λ, p)-开集的概念。讨论了δs(Λ, p)开集的一些性质。其次,引入s(Λ, p)连通空间的概念。此外,我们利用δs(Λ, p)开集给出了s(Λ, p)连通空间的几个表征。第三,我们应用s(Λ, p)-开集的概念,提出并研究了s(Λ, p)-正则空间和s(Λ, p)-正规空间的新类别。特别地,建立了s(Λ, p)-正则空间和s(Λ, p)-正规空间的一些表征。第四,引入并研究了s(Λ, p)-T2空间和s(Λ, p)-Urysohn空间的概念。最后,研究了S(Λ, p)-闭空间的概念。研究了S(Λ, p)-闭空间的基本性质和特征。
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引用次数: 0
On B-commutators of B-algebras 关于b代数的b对易子
IF 0.7 Q1 MATHEMATICS Pub Date : 2023-07-30 DOI: 10.29020/nybg.ejpam.v16i3.4841
Joel G. Adanza
In this paper, we investigate some properties of B-commutators of B-algebras. We also characterize solvable B-algebras via B-commutators.
本文研究了b -代数的b对易子的一些性质。我们还通过b -对易子描述了可解b代数。
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引用次数: 0
Some Properties and Realization Problems Involving Connected Outer-hop Independent Hop Domination in Graphs 图中连通外跳独立控制的一些性质及实现问题
IF 0.7 Q1 MATHEMATICS Pub Date : 2023-07-30 DOI: 10.29020/nybg.ejpam.v16i3.4684
Javier Hassan, Abdurajan B. Lintasan, N. H. M. Mohammad
In this paper, we construct a realization problems involving connected outer-hop independent hop domination and we determine its connections with other known parameters in graph theory. In particular, given two positive integers a and b with 2 ≤ a ≤ b are realizable as the connected hop domination, connected outer-hop independent hop domination, and connected outer-independent hop domination numbers, respectively, of a connected graph. In addition, we characterize the connected outer-hop independent hop dominating sets in some families of graphs, join and corona of two graphs, and we use these results to derive formulas for the parameters of these graphs.
在本文中,我们构造了一个涉及连接外跳独立跳控制的实现问题,并确定了它与图论中其他已知参数的连接。特别地,给定两个2≤a≤b的正整数a和b,分别可实现为连通图的连通跳控制、连通外跳独立跳控制和连通外跳无关跳控制数。此外,我们刻画了一些图族中的连通外跳独立跳支配集,两个图的连接和电晕,并利用这些结果导出了这些图的参数公式。
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引用次数: 3
Analysis of Novel 4D Rabinovich-Fabrikant Continuous Dynamical System with Coexistence Attractors 具有共存吸引子的4D Rabinovich-Fabrikant连续动力系统的分析
IF 0.7 Q1 MATHEMATICS Pub Date : 2023-07-30 DOI: 10.29020/nybg.ejpam.v16i3.4857
Maysoon M. Aziz, Ghassan. E. Arif, Ahmad T. Ahmad
In this paper a new Rabinovitch-Fabrikant (R-F) four dimensional (4D) continuous time dynamical system was generated from three dimensional (3D) Rabinovitch-Fabrikant dynamical system using the state augmentation technique by adding new state variables u. The system employs thirteen terms includes five cross-product terms and one irreversible function. The dynamical behaviors of the system were investigated which include equilibrium points, stability analysis, wave form analysis, phase space analysis, multistability, Hopf-bifurcation, the Lyapunov exponent and Lyapunov dimension. The values of Lyapunov exponents are:L1 = 14.025946, L2 = 0.295151, L3 = −2.854401, L4 = −13.736833. and Lyapunov dimension is (3.83474), so the system is unstable and hyperchaotic with coexistence attractors. Chaos was handled in two ways: adaptive control and adaptive synchronization, it was found that the new system is stable and achieved good results.
本文利用状态增广技术,通过添加新的状态变量u,从三维Rabinovich-Fabrikant动力系统中生成了一个新的Rabinovitch-Fabrikat(R-F)四维(4D)连续时间动力系统。该系统使用了十三项,包括五个叉积项和一个不可逆函数。研究了系统的动力学行为,包括平衡点、稳定性分析、波形分析、相空间分析、多稳态、Hopf分岔、李雅普诺夫指数和李雅普诺维。李雅普诺夫指数的值为:L1=14.025946,L2=0.295151,L3=−2.854401,L4=−13.736833。Lyapunov维数为(3.83474),因此该系统是不稳定的、具有共存吸引子的超混沌系统。采用自适应控制和自适应同步两种方法对混沌进行处理,结果表明,新系统是稳定的,并取得了良好的效果。
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引用次数: 0
2-Locating Sets in a Graph 2-在图中定位集
IF 0.7 Q1 MATHEMATICS Pub Date : 2023-07-30 DOI: 10.29020/nybg.ejpam.v16i3.4821
Gymaima Canete, Helen M. Rara, Angelica Mae Mahistrado
Let $G$ be an undirected graph with vertex-set $V(G)$ and edge-set $E(G)$, respectively. A set $Ssubseteq V(G)$ is a $2$-locating set of $G$ if $big|[big(N_G(x)backslash N_G(y)big)cap S] cup [big(N_G(y)backslash N_G(x)big)cap S]big|geq 2$, for all linebreak $x,yin V(G)backslash S$ with $xneq y$, and for all $vin S$ and $win V(G)backslash S$, $big(N_G(v)backslash N_G(w)big)cap S neq varnothing$ or $big(N_G(w)backslash N_G[v]big) cap Sneq varnothing$. In this paper, we investigate the concept and study 2-locating sets in graphs resulting from some binary operations. Specifically, we characterize the 2-locating sets in the join, corona, edge corona and lexicographic product of graphs, and determine bounds or exact values of the 2-locating number of each of these graphs.
设$G$是一个无向图,其顶点集为$V(G)$,边集为$E(G)$。如果$big|[big(N_G(x)反斜杠N_G(y)big)cap S]cup[big V)反斜杠N_G(w)big)cap Sneqvarnoth$或$big(N_G(w)反斜线N_G[V]big)cop Sneq varnote$。在本文中,我们研究了图中由一些二进制运算产生的2-定位集的概念。具体地,我们刻画了图的连接、电晕、边电晕和字典积中的2-定位集,并确定了这些图的2-定位数的界或精确值。
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引用次数: 0
The Homotopy Perturbation Method for Solving Nonlocal Initial-Boundary Value Problems for Parabolic and Hyperbolic Partial Differential Equations 求解抛物型和双曲型偏微分方程非局部初边值问题的齐次摄动方法
IF 0.7 Q1 MATHEMATICS Pub Date : 2023-07-30 DOI: 10.29020/nybg.ejpam.v16i3.4794
W. Al-Hayani, Mahasin Thabet Younis
To obtain approximate-exact solutions to nonlocal initial-boundary value problems (IBVPs) of linear and nonlinear parabolic and hyperbolic partial differential equations (PDEs) subject to initial and nonlocal boundary conditions of integral type, the homotopy perturbation method (HPM) is utilized in this study. The HPM is used to solve the specified nonlocal IBVPs, which are then transformed into local Dirichlet IBVPs. Some examples demonstrate how accurate and efficient the HPM.  
为了获得具有积分型初值和非局部边界条件的线性和非线性抛物型和双曲型偏微分方程的非局部初边值问题的近似精确解,采用同伦摄动方法。该方法首先求解指定的非局部ibvp,然后将其转化为局部Dirichlet ibvp。一些例子证明了HPM的准确性和效率。
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引用次数: 1
The Generator Graph of a Group 群的生成图
IF 0.7 Q1 MATHEMATICS Pub Date : 2023-07-30 DOI: 10.29020/nybg.ejpam.v16i3.4863
Teresa L. Tacbobo
This paper presents a way to represent a group using a graph, which involves the concept of a generator element of a group. The graph representing a group is called the generator graph. In the generator graph, the vertices correspond to the elements of the group, and two vertices, x and y, are connected by an edge if either x or y serves as a generator for the group. The paper investigates some properties of these generator graphs and obtains the generator graphs for specific groups. Additionally, it explores the relationship between the generator graph of a group and the generating graph introduced by Lucchini et al. in their work [7].
本文提出了一种用图表示群的方法,其中涉及到群的生成元素的概念。表示组的图称为生成图。在生成器图中,顶点对应于组中的元素,如果x或y作为组的生成器,则两个顶点x和y通过一条边连接。本文研究了这些生成图的一些性质,得到了特定群的生成图。此外,还探讨了群的生成图与Lucchini等人在其著作[7]中引入的生成图之间的关系。
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引用次数: 0
期刊
European Journal of Pure and Applied Mathematics
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