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On corrected Simpson-type inequalities via local fractional integrals 关于通过局部分数积分修正的辛普森式不等式
IF 0.7 4区 数学 Q2 MATHEMATICS Pub Date : 2024-06-25 DOI: 10.1515/gmj-2024-2030
Abdelghani Lakhdari, Badreddine Meftah, Wedad Saleh
The paper discusses corrected Simpson-type inequalities on fractal sets. Based on an introduced identity, we establish some error bounds for the considered formula using the generalized s-convexity and s-concavity of the local fractional derivative. Finally, we present some graphical representations justifying the established theoretical framework as well as some applications.
本文讨论了分形集上的修正辛普森式不等式。基于引入的特性,我们利用局部分形导数的广义 s 凸性和 s 凹性为所考虑的公式建立了一些误差边界。最后,我们给出了一些图形表示,证明了所建立的理论框架以及一些应用。
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引用次数: 0
Action of higher derivations on semiprime rings 高等派生对半元环的作用
IF 0.7 4区 数学 Q2 MATHEMATICS Pub Date : 2024-06-25 DOI: 10.1515/gmj-2024-2026
Shakir Ali, Vaishali Varshney
Let m , n {m,n} be the fixed positive integers and let {mathcal{R}} be a ring. In 1978, Herstein proved that a 2-torsion free prime ring {mathcal{R}} is commutative if there is a nonzero derivation d of R such that [ d ( ϱ ) , d ( ξ ) ] = 0 {[d(varrho),d(xi)]=0} for all ϱ , ξ R {varrho,xiin R} . In this article, we study the above mentioned classical result for higher derivations and describe the structure of semiprime rings by using the invariance property of prime ideals under higher derivations. Precisely, apart from proving some other important results, we prove the following. Let ( d i )
设 m , n {m,n} 是固定的正整数,设 ℛ {mathcal{R}} 是一个环。1978 年,赫斯坦证明,如果 R 有一个非零派生 d,使得 [ d ( ϱ ) , d ( ξ ) ] = 0 {[d(varrho),d(xi)]=0} 对于所有 ϱ , ξ∈ R {varrho,xiin R} 而言,那么 2 个无扭素数环ℛ {mathcal{R}} 是交换环。 .在本文中,我们将研究上述关于高阶引申的经典结果,并利用素理想在高阶引申下的不变性来描述半素环的结构。确切地说,除了证明其他一些重要结果之外,我们还证明了以下内容。设 ( d i ) i∈ ℕ {(d_{i})_{iinmathbb{N}}} 和 ( g j ) j∈ ℕ {(g_{j})_{jinmathbb{N}}} 是半椭圆环 ℛ {mathcal{R}} 的两个高阶衍,使得 [ d n ( ϱ ) 、 g m ( ξ ) ] ∈ Z ( ℛ ) {[d_{n}(varrho),g_{m}(xi)]in Z(mathcal{R})} for all ϱ , ξ ∈ ℐ {varrho,xiinmathcal{I}} 其中ℐ {mathcal{I}} 是ℛ {mathcal{R}} 的理想。 .那么,要么ℛ {mathcal{R}} 是交换式的,要么 ( d i ) i∈ ℕ {(d_{i})_{iinmathbb{N}}} 的某个线性组合将 Z ( ℛ ) {Z(mathcal{R})} 为零,或者 ( g j ) j∈ ℕ {(g_{j})_{jinmathbb{N}} 的某个线性组合使 Z ( ℛ ) {Z(mathcal{R})} 为零。我们用实例来丰富我们的结果,证明其假设的必要性。最后,我们以进一步研究的方向结束本文。
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引用次数: 0
Dunkl-type Segal–Bargmann transform and its applications to some partial differential equations Dunkl 型 Segal-Bargmann 变换及其在某些偏微分方程中的应用
IF 0.7 4区 数学 Q2 MATHEMATICS Pub Date : 2024-06-25 DOI: 10.1515/gmj-2024-2031
Fethi Soltani, Meriem Nenni
In this paper, we give some applications of the Dunkl-type Segal–Bargmann transform α {mathscr{B}_{alpha}} in the field of partial differential equations, such as the time-dependent Dunkl–Dirac Laplacian equation and the time-dependent Dunkl–Schrödinger equation. The resolution of these types of problems is based on the techniques of the transmutation operators on the Dunkl-type Fock space α ( d ) {mathscr{F}_{alpha}(mathbb{C}^{d})} .
本文给出了邓克尔型西格尔-巴格曼变换ℬ α {mathscr{B}_{alpha}} 在偏微分方程领域的一些应用,例如时变邓克尔-狄拉克拉普拉斯方程和时变邓克尔-薛定谔方程。这类问题的解决基于邓克尔型福克空间 ℱ α ( ℂ d ) {mathscr{F}_{alpha}(mathbb{C}^{d})} 上的嬗变算子技术。
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引用次数: 0
The influence of c-subnormality subgroups on the structure of finite groups c-subnormality 子群对有限群结构的影响
IF 0.7 4区 数学 Q2 MATHEMATICS Pub Date : 2024-06-25 DOI: 10.1515/gmj-2024-2036
Dana Jaraden, Ali Ateiwi, Jehad Jaraden
Let H be a subgroup of a group G. We say that H is c-subnormal in G if there exists a subnormal subgroup T of G such that H T = G {HT=G} and H T H G {Hcap Tleqslant H_{G}} , where H G {H_{G}} is the maximal normal subgroup of G which is contained in H. In this paper, we investigate the structure of a finite group G under the assumption that all maximal subgroups are c-subnormal subgroups and present some new conditions for supersolvability.
如果存在一个 G 的子正则子群 T,使得 H T = G {HT=G},并且 H ∩ T ⩽ H G {Hcap Tleqslant H_{G}} ,我们就说 H 在 G 中是 c 正则子群。 本文研究了在所有最大子群都是 c-subnormal 子群的假设下有限群 G 的结构,并提出了一些新的超可溶条件。
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引用次数: 0
Timelike zero mean curvature surfaces in ℝ1 4 ℝ中的时样零均值曲率曲面1 4
IF 0.7 4区 数学 Q2 Mathematics Pub Date : 2024-06-11 DOI: 10.1515/gmj-2024-2028
Seher Kaya
Abstract We are interested in the solution of the Björling problem for timelike surfaces in R 1 4 mathbb{R}_{1}^{4} . The main contribution of the paper is to present new and many examples of timelike zero mean curvature surfaces and give their explicit parametric equations. In particular cases, one observes that the parametric equations of these surfaces coincide with the timelike minimal surfaces in Lorentz–Minkowski 3-space.
摘要 我们对 R 1 4 mathbb{R}_{1}^{4} 中时间状曲面的比约林问题的解很感兴趣。本文的主要贡献在于提出了许多新的时样零均值曲率曲面的例子,并给出了它们的显式参数方程。在特殊情况下,我们会发现这些曲面的参数方程与洛伦兹-闵科夫斯基 3 空间中的时间极小曲面重合。
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引用次数: 0
Generalized derivation on semiprime and prime Banach algebras 半素数和素数巴拿赫代数的广义推导
IF 0.7 4区 数学 Q2 Mathematics Pub Date : 2024-06-11 DOI: 10.1515/gmj-2024-2027
Emine Koç Sögütcü
Abstract In this study, the commutativity conditions with generalized derivations, which have not been examined before, are discussed. Under these conditions, the subject of generalized derivations in (semi)prime Banach algebras is studied. New fundamental results will be provided for researchers in this field and generalize some of the results found in the literature.
摘要 本研究讨论了广义推导的换元条件,这些条件以前从未研究过。在这些条件下,研究了(半)素巴拿赫代数中的广义派生问题。这将为这一领域的研究人员提供新的基本结果,并对文献中的一些结果进行概括。
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引用次数: 0
On the criteria of a measure of non-strict cosingularity in the description of spectral properties of operator matrix 论描述算子矩阵频谱特性的非严格正弦度量标准
IF 0.7 4区 数学 Q2 Mathematics Pub Date : 2024-06-11 DOI: 10.1515/gmj-2024-2029
S. Bouzidi, Ines Walha
Abstract In this paper, we are interested to formulate new assumptions on the entries of an unbounded 3 × 3 3times 3 block operator matrix defined with a maximal domain on the product of Banach spaces guaranteeing its corresponding Frobenius–Schur formula. Our approach allows us to derive some original stability results intervening in the theory of perturbed lower semi-Fredholm operators involving the concept of a measure of non-strict cosingularity perturbation. A new technique is presented to investigate the Weidmann and defect essential spectra of the closure of such model of operator matrix via new criterion of perturbation.
摘要 在本文中,我们有兴趣对一个无界 3 × 3 3 (times 3)块算子矩阵的项提出新的假设,该矩阵定义在巴拿赫空间乘积上的最大域,保证其相应的 Frobenius-Schur 公式。我们的方法使我们能够推导出一些原创的稳定性结果,这些结果涉及扰动的下半弗雷德霍姆算子理论,其中涉及非严格正弦扰动度量的概念。我们提出了一种新技术,通过新的扰动准则来研究这种算子矩阵模型闭合的魏德曼和缺陷本质谱。
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引用次数: 0
Existence of positive weak solutions for stationary fractional Laplacian problem by using sub-super solutions 利用子超级解求得静态分数拉普拉斯问题的正弱解的存在性
IF 0.7 4区 数学 Q2 Mathematics Pub Date : 2024-05-17 DOI: 10.1515/gmj-2024-2025
R. Guefaifia, S. Boulaaras, Rashid Jan
In this work, we establish a theorem concerning the extension of positive weak solutions for a stationary fractional Laplacian problem featuring weight functions that change sign. Additionally, we introduce novel conditions to ensure the existence of a positive solution for the given problem. These conditions are derived utilizing the approach of sub-super solutions, thereby extending and complementing existing results in the literature.
在这项工作中,我们建立了一个关于以改变符号的权重函数为特征的静态分数拉普拉斯问题的正弱解的扩展定理。此外,我们还引入了新的条件,以确保给定问题存在正解。这些条件是利用子超级解的方法得出的,从而扩展并补充了文献中的现有结果。
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引用次数: 0
Existence of solutions for (p(y),q(y))-Laplacian elliptic problem on an exterior domain 外部域上 (p(y),q(y))-拉普拉斯椭圆问题解的存在性
IF 0.7 4区 数学 Q2 Mathematics Pub Date : 2024-04-25 DOI: 10.1515/gmj-2024-2022
Akanksha Kesarwani, Rasmita Kar
In this paper, we study the following elliptic problem involving the ( p ( y ) , q ( y ) {p(y),q(y)} )-Laplacian operator: { - div ( a
本文研究了以下涉及 ( p ( y ) , q ( y ) {p(y),q(y)} )- 拉普拉卡算子的椭圆问题: { - div ( a ( y ) | ∇ v | p ( y ) - 2 ∇ v ) + b ( y ) | v
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引用次数: 0
A Mazurkiewicz set containing the graph of a Sierpiński–Zygmund function 包含西尔皮斯基-齐格蒙函数图的马祖尔凯维奇集合
IF 0.7 4区 数学 Q2 Mathematics Pub Date : 2024-04-24 DOI: 10.1515/gmj-2024-2023
Alexander Kharazishvili
It is shown that there exists a Mazurkiewicz subset ofthe Euclidean plane containing the graph of some Sierpiński–Zygmund function.
研究表明,欧几里得平面存在一个马祖尔凯维奇子集,其中包含某个西尔皮斯基-齐格蒙函数的图形。
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引用次数: 0
期刊
Georgian Mathematical Journal
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