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On generalized double almost statistical convergence of weight $g$ 权$g$的广义二重概统计收敛性
IF 0.8 Q1 MATHEMATICS Pub Date : 2022-11-13 DOI: 10.15330/cmp.14.2.388-394
E. Savaş
The purpose of this paper is to introduce the concept of $lambda$-double almost statistical convergence of weight $g$, which emerges naturally from the concept of the double almost convergence and $lambda$-statistical convergence. Some interesting inclusion relations have been considered.
本文的目的是引入权$g$的$lambda$-双几乎统计收敛的概念,它是由$lambda$-统计收敛的概念和$lambda$-统计收敛的概念自然产生的。本文还考虑了一些有趣的包含关系。
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引用次数: 0
Classification of the extreme points of ${mathcal L}_s(^2l_{infty}^3)$ by computation 通过计算对${mathcal L}_s(^2l_{infty}^3)$极值点进行分类
IF 0.8 Q1 MATHEMATICS Pub Date : 2022-11-12 DOI: 10.15330/cmp.14.2.371-387
Sung Guen Kim
Let $l_{infty}^3=mathbb{R}^3$ be endowed with the supremum norm. In [Comment. Math. 2017,  57 (1), 1-7], S.G. Kim classified the extreme points of the unit ball of ${mathcal L}_s(^2l_{infty}^3)$ only using Mathematica 8, where ${mathcal L}_s(^2l_{infty}^3)$ is the space of symmetric bilinear forms on $l_{infty}^3$. It seems to be interesting and meaningful to classify the extreme points of the unit ball of ${mathcal L}_s(^2l_{infty}^3)$ without using Mathematica 8. The aim of this paper is to make such classification by mathematical calculations.
让$l_{infty}^3=mathbb{R}^3$被赋予最高的规范。在[评论]数学,2017,57 (1),1-7],S.G. Kim仅使用Mathematica 8对${mathcal L}_s(^2l_{infty}^3)$的单位球的极值点进行了分类,其中${mathcal L}_s(^2l_{infty}^3)$为$l_{infty}^3$上对称双线性形式的空间。在不使用Mathematica 8的情况下,对${mathcal L}_s(^2l_{infty}^3)$的单位球的极值点进行分类似乎是有趣而有意义的。本文的目的是通过数学计算来进行这种分类。
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引用次数: 0
Bernstein-Jackson-type inequalities with exact constants in Orlicz spaces Orlicz空间中具有精确常数的bernstein - jackson型不等式
IF 0.8 Q1 MATHEMATICS Pub Date : 2022-09-04 DOI: 10.15330/cmp.14.2.364-370
M. Dmytryshyn, L. Dmytryshyn
We establish the Bernstein and Jackson type inequalities with exact constants for estimations of best approximations by exponential type functions in Orlicz spaces $L_M(mathbb{R}^n)$. For this purpose, we use a special scale of approximation spaces $mathcal{B}_tau^s(M)$ that are interpolation spaces between the subspace $mathscr{E}_M$ of exponential type functions and the space $L_M(mathbb{R}^n)$. These approximation spaces are defined using a functional $Eleft(t,fright)$ that plays a similar role as the module of smoothness. The constants in obtained inequalities are expressed using a normalization factor $N_{vartheta,q}$ that is determined by the parameters $tau$ and $s$ of the approximation space $mathcal{B}_tau^s(M)$.
我们建立了具有精确常数的Bernstein和Jackson型不等式,用于估计Orlicz空间中指数型函数的最佳逼近$L_M(mathbb{R}^n)$。为此,我们使用一种特殊尺度的近似空间$mathcal{B}_tau^s(M)$,它是指数型函数的子空间$mathscr{E}_M$和空间$L_M(mathbb{R}^n)$之间的插值空间。这些近似空间是用一个函数$Eleft(t,fright)$来定义的,这个函数的作用类似于平滑模块。得到的不等式中的常数使用归一化因子$N_{vartheta,q}$表示,该因子由近似空间$mathcal{B}_tau^s(M)$的参数$tau$和$s$决定。
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引用次数: 0
Some new classes of degenerated generalized Apostol-Bernoulli, Apostol-Euler and Apostol-Genocchi polynomials 退化广义apostoll - bernoulli多项式、apostoll - euler多项式和apostoll - genocchi多项式的一些新类别
IF 0.8 Q1 MATHEMATICS Pub Date : 2022-08-21 DOI: 10.15330/cmp.14.2.354-363
W. Ramírez, C. Cesarano
The aim of this paper is to study new classes of degenerated generalized Apostol-Bernoulli, Apostol-Euler and Apostol-Genocchi polynomials of order $alpha$ and level $m$ in the variable $x$. Here the degenerate polynomials are a natural extension of the classic polynomials. In more detail, we derive their explicit expressions, recurrence relations and some identities involving those polynomials and numbers. Most of the results are proved by using generating function methods.
本文的目的是研究变量$x$中阶$ α $和阶$m$的退化广义apostoll - bernoulli、apostoll - euler和apostoll - genocchi多项式的新类别。这里退化多项式是经典多项式的自然扩展。更详细地,我们推导了它们的显式表达式、递归关系以及涉及这些多项式和数的一些恒等式。大多数结果都是用生成函数法来证明的。
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引用次数: 4
On the semigroup $boldsymbol{B}_{omega}^{mathscr{F}_n}$, which is generated by the family $mathscr{F}_n$ of finite bounded intervals of $omega$ 关于半群$boldsymbol{B}_{omega}^{mathscr{F}_n}$,它是由$omega$的有限有界区间$mathscr{F}_n$族生成的
IF 0.8 Q1 MATHEMATICS Pub Date : 2022-08-19 DOI: 10.15330/cmp.15.2.331-355
O. Gutik, O. Popadiuk
We study the semigroup $boldsymbol{B}_{omega}^{mathscr{F}_n}$, which is introduced in the paper [Visnyk Lviv Univ. Ser. Mech.-Mat. 2020, 90, 5-19 (in Ukrainian)], in the case when the ${omega}$-closed family $mathscr{F}_n$ generated by the set ${0,1,ldots,n}$. We show that the Green relations $mathscr{D}$ and $mathscr{J}$ coincide in $boldsymbol{B}_{omega}^{mathscr{F}_n}$, the semigroup $boldsymbol{B}_{omega}^{mathscr{F}_n}$ is isomorphic to the semigroup $mathscr{I}_omega^{n+1}(overrightarrow{mathrm{conv}})$ of partial convex order isomorphisms of $(omega,leqslant)$ of the rank $leqslant n+1$, and $boldsymbol{B}_{omega}^{mathscr{F}_n}$ admits only Rees congruences. Also, we study shift-continuous topologies on the semigroup $boldsymbol{B}_{omega}^{mathscr{F}_n}$. In particular, we prove that for any shift-continuous $T_1$-topology $tau$ on the semigroup $boldsymbol{B}_{omega}^{mathscr{F}_n}$ every non-zero element of $boldsymbol{B}_{omega}^{mathscr{F}_n}$ is an isolated point of $(boldsymbol{B}_{omega}^{mathscr{F}_n},tau)$, $boldsymbol{B}_{omega}^{mathscr{F}_n}$ admits the unique compact shift-continuous $T_1$-topology, and every $omega_{mathfrak{d}}$-compact shift-continuous $T_1$-topology is compact. We describe the closure of the semigroup $boldsymbol{B}_{omega}^{mathscr{F}_n}$ in a Hausdorff semitopological semigroup and prove the criterium when a topological inverse semigroup $boldsymbol{B}_{omega}^{mathscr{F}_n}$ is $H$-closed in the class of Hausdorff topological semigroups.
我们研究半群 $boldsymbol{B}_{omega}^{mathscr{F}_n}$论文[Visnyk Lviv university . Ser.]对此进行了介绍。机甲-马特。2020,90,5 -19(乌克兰语)],在这种情况下当 ${omega}$-封闭的家庭 $mathscr{F}_n$ 由集合生成 ${0,1,ldots,n}$. 我们展示了格林关系 $mathscr{D}$ 和 $mathscr{J}$ 与…一致 $boldsymbol{B}_{omega}^{mathscr{F}_n}$即半群 $boldsymbol{B}_{omega}^{mathscr{F}_n}$ 与半群同构吗 $mathscr{I}_omega^{n+1}(overrightarrow{mathrm{conv}})$ 的部分凸序同构的 $(omega,leqslant)$ 有资格的 $leqslant n+1$,和 $boldsymbol{B}_{omega}^{mathscr{F}_n}$ 只承认里斯同余。此外,我们还研究了半群上的位移连续拓扑 $boldsymbol{B}_{omega}^{mathscr{F}_n}$. 特别地,我们证明了对于任何移位连续 $T_1$-topology $tau$ 在半群上 $boldsymbol{B}_{omega}^{mathscr{F}_n}$ 的每一个非零元素 $boldsymbol{B}_{omega}^{mathscr{F}_n}$ 孤立点是 $(boldsymbol{B}_{omega}^{mathscr{F}_n},tau)$, $boldsymbol{B}_{omega}^{mathscr{F}_n}$ 承认独特的紧凑移位连续 $T_1$-拓扑,以及每一个 $omega_{mathfrak{d}}$-紧凑移位-连续 $T_1$-topology是紧凑的。我们描述了半群的闭包 $boldsymbol{B}_{omega}^{mathscr{F}_n}$ 在Hausdorff半群中,证明了拓扑逆半群存在的准则 $boldsymbol{B}_{omega}^{mathscr{F}_n}$ 是 $H$-闭在Hausdorff拓扑半群的类中。
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引用次数: 1
On the derivations of cyclic Leibniz algebras 关于循环莱布尼兹代数的导数
IF 0.8 Q1 MATHEMATICS Pub Date : 2022-08-07 DOI: 10.15330/cmp.14.2.345-353
M. Semko, L. Skaskiv, O. A. Yarovaya
Let $L$ be an algebra over a field $F$. Then $L$ is called a left Leibniz algebra, if its multiplication operation $[-,-]$ additionally satisfies the so-called left Leibniz identity: $[[a,b],c]=[a,[b,c]]-[b,[a,c]]$ for all elements $a,b,cin L$. A linear transformation $f$ of a Leibniz algebra $L$ is called a derivation of an algebra $L$, if $f([a,b])=[f(a),b]+[a,f(b)]$ for all elements $a,bin L$. It is well known that the set of all derivations $mathrm{Der}(L)$ of a Leibniz algebra $L$ is a subalgebra of the Lie algebra $mathrm{End}_{F}(L)$ of all linear transformations of an algebra $L$. The algebras of derivations of Leibniz algebras play an important role in the study of structure of Leibniz algebras. Their role is similar to that played by groups of automorphisms in the study of group structure. In this paper, a complete description of the algebra of derivations of nilpotent cyclic Leibniz algebra is obtained. In particular, it was proved that this algebra is metabelian and supersoluble Lie algebra, and its dimension is equal to the dimension of an algebra $L$.
设L是域F上的一个代数。那么$L$被称为左莱布尼茨代数,如果它的乘法运算$[-,-]$另外满足所谓的左莱布尼茨恒等式:$[[a,b],c]=[a,[b,c]]-[b,[a,c]]$对于L$中的所有元素$a,b,c。莱布尼兹代数$L$的线性变换$f$称为代数$L$的派生,如果$f([A,b])=[f(A),b]+[A,f(b)]$对于L$中的所有元素$ A,b。众所周知,莱布尼兹代数$L$的所有派生$mathrm{Der}(L)$的集合是代数$L$的所有线性变换的李代数$mathrm{End}_{F}(L)$的子代数。莱布尼兹代数的导数代数在研究莱布尼兹代数的结构中起着重要的作用。它们的作用类似于自同构群在群体结构研究中的作用。本文给出了幂零循环莱布尼兹代数的导数代数的完整描述。特别地,证明了该代数是一个亚可溶的超溶李代数,其维数等于一个代数的维数$L$。
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引用次数: 2
Fuzzy fractional hybrid differential equations 模糊分数混合微分方程
IF 0.8 Q1 MATHEMATICS Pub Date : 2022-08-06 DOI: 10.15330/cmp.14.2.332-344
A. Harir, S. Melliani, L. S. Chadli
This article is related to present and solve the theory of fractional hybrid differential equations with fuzzy initial values involving the fuzzy Riemann-Liouville fractional differential operators of order $0 < q < 1$. For the concerned presentation, we study the existence and uniqueness of a fuzzy solution are brought in detail basing on the concept of generalized division of fuzzy numbers. We have developed and investigated a fuzzy solution of a fuzzy fractional hybrid differential equation. At the end we have given an example is provided to illustrate the theory.
本文建立并求解了阶为$0 < q < 1$的模糊Riemann-Liouville分数阶微分算子的模糊初值分数阶混合微分方程理论。本文从模糊数广义除法的概念出发,详细研究了模糊解的存在唯一性。建立并研究了一类模糊分数阶混合微分方程的模糊解。最后,我们给出了一个例子来说明该理论。
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引用次数: 0
More on the extension of linear operators on Riesz spaces 更多关于Riesz空间上线性算子的扩展
IF 0.8 Q1 MATHEMATICS Pub Date : 2022-07-27 DOI: 10.15330/cmp.14.2.327-331
O. Fotiy, A. Gumenchuk, M. M. Popov
The classical Kantorovich theorem asserts the existence and uniqueness of a linear extension of a positive additive mapping, defined on the positive cone $E^+$ of a Riesz space $E$ taking values in an Archimedean Riesz space $F$, to the entire space $E$. We prove that, if $E$ has the principal projection property and $F$ is Dedekind $sigma$-complete then for every $e in E^+$ every positive finitely additive $F$-valued measure defined on the Boolean algebra $mathfrak{F}_e$ of fragments of $e$ has a unique positive linear extension to the ideal $E_e$ of $E$ generated by $e$. If, moreover, the measure is $tau$-continuous then the linear extension is order continuous.
经典的Kantorovich定理断言了一个正加性映射的线性扩展的存在唯一性,该映射定义在Riesz空间$E$的正锥$E^+$上,取阿基米德Riesz空间$F$中的值,到整个空间$E$。我们证明了,如果$E$具有主投影性质,且$F$是Dedekind $sigma$ -complete,那么对于$e in E^+$,对于$e$的片段的布尔代数$mathfrak{F}_e$上定义的每一个正有限可加的$F$值测度,对$e$生成的$E$的理想$E_e$有唯一的正线性扩展。此外,如果测度是$tau$ -连续的,则线性扩展是阶连续的。
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引用次数: 0
Application of the method of averaging to boundary value problems for differential equations with non-fixed moments of impulse 平均法在非固定脉冲矩微分方程边值问题中的应用
IF 0.8 Q1 MATHEMATICS Pub Date : 2022-07-26 DOI: 10.15330/cmp.14.2.304-326
O. Stanzhytskyi, R. E. Uteshova, M. Mukash, V. Mogylova
The method of averaging is applied to study the existence of solutions of boundary value problems for systems of differential equations with non-fixed moments of impulse action. It is shown that if an averaged boundary value problem has a solution, then the original problem is solvable as well. Here the averaged problem for the impulsive system is a simpler problem of ordinary differential equations.
应用平均法研究了具有非固定脉冲矩的微分方程组边值问题解的存在性。证明了如果平均边值问题有解,则原问题也是可解的。这里脉冲系统的平均问题是一个更简单的常微分方程问题。
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引用次数: 2
On generalized fractional integral operator involving Fox's $H$-function and its applications to unified subclass of prestarlike functions with negative coefficients 涉及Fox $H$-函数的广义分数阶积分算子及其在负系数似星前函数统一子类中的应用
IF 0.8 Q1 MATHEMATICS Pub Date : 2022-06-30 DOI: 10.15330/cmp.14.1.289-298
D. Soybaş, S. Joshi, H. Pawar
The aim of present paper is to find out different interesting properties and characterization of unified class $P_{gamma}(A, B, alpha,sigma)$ of prestarlike functions with negative coefficients in the unit disc $U$. Furthermore, distortion theorems involving a generalized fractional integral operator involving well-known Fox's $H$-function for functions in this class are proved.
本文的目的是找出单位圆盘$U$中具有负系数的似星前函数统一类$P_{gamma}(A, B, alpha,sigma)$的不同有趣性质和表征。在此基础上,进一步证明了一类函数的畸变定理,该定理涉及一个广义分数积分算子,该算子涉及著名的Fox's $H$ -函数。
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引用次数: 0
期刊
Carpathian Mathematical Publications
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