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Solutions of a coupled system of hybrid boundary value problems with Riesz-Caputo derivative 具有里兹-卡普托导数的混合边界值问题耦合系统的解法
IF 2 3区 数学 Q1 Mathematics Pub Date : 2024-01-01 DOI: 10.1515/dema-2023-0125
Dehong Ji, Shiqiu Fu, Yitao Yang
Riesz-Caputo fractional derivative refers to a fractional derivative that reflects both the past and the future memory effects. This study gives sufficient conditions for the existence of solutions for a coupled system of fractional order hybrid differential equations involving the Riesz-Caputo fractional derivative. For this motive, the results are obtained via classical results due to Dhage.
Riesz-Caputo 分数导数是指同时反映过去和未来记忆效应的分数导数。本研究给出了涉及 Riesz-Caputo 分数导数的分数阶混合微分方程耦合系统解存在的充分条件。对于这一动机,结果是通过 Dhage 的经典结果获得的。
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引用次数: 0
Existence of projected solutions for quasi-variational hemivariational inequality 准变量半变量不等式的投影解的存在性
IF 2 3区 数学 Q1 Mathematics Pub Date : 2024-01-01 DOI: 10.1515/dema-2023-0139
Fei Guan, Jinxia Cen, Boling Chen, Jen-Chih Yao
In this short article, we prove the existence of projected solutions to a class of quasi-variational hemivariational inequalities with non-self-constrained mapping, which generalizes the results of Allevi et al. (Quasi-variational problems with non-self map on Banach spaces: Existence and applications, Nonlinear Anal. Real World Appl. 67 (2022), 103641, DOI: https://doi.org/10.1016/j.nonrwa.2022.103641.)
在这篇短文中,我们证明了一类具有非自约束映射的准变量半变量不等式的投影解的存在性,从而推广了 Allevi 等人的研究成果(巴纳赫空间上具有非自映射的准变量问题:Existence and applications, Nonlinear Anal.67 (2022), 103641, DOI: https://doi.org/10.1016/j.nonrwa.2022.103641.)
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引用次数: 0
On the p-fractional Schrödinger-Kirchhoff equations with electromagnetic fields and the Hardy-Littlewood-Sobolev nonlinearity 关于有电磁场的 p 分数薛定谔-基尔霍夫方程和哈代-利特尔伍德-索博廖夫非线性
IF 2 3区 数学 Q1 Mathematics Pub Date : 2024-01-01 DOI: 10.1515/dema-2023-0124
Min Zhao, Yueqiang Song, D. D. Repovš
Abstract In this article, we deal with the following p p -fractional Schrödinger-Kirchhoff equations with electromagnetic fields and the Hardy-Littlewood-Sobolev nonlinearity: M ( [ u ] s , A p ) ( − Δ ) p , A s u + V ( x ) ∣ u ∣ p − 2 u = λ ∫ R N ∣ u ∣ p μ , s * ∣ x − y ∣ μ d y ∣ u ∣ p μ , s * − 2 u + k ∣ u ∣ q − 2 u , x ∈ R N , M({left[u]}_{s,A}^{p}){left(-Delta )}_{p,A}^{s}u+Vleft(x){| u| }^{p-2}u=lambda left(mathop{int }limits_{{{mathbb{R}}}^{N}}frac{{| u| }^{{p}_{mu ,s}^{* }}}{{| x-y| }^{mu }}{rm{d}}yright){| u| }^{{p}_{mu ,s}^{* }-2}u+k{| u| }^{q-2}u,hspace{1em}xin {{mathbb{R}}}^{N}, where 0 < s < 1 < p 0lt slt 1lt p , p s < N pslt N , p < q < 2 p s , μ * plt qlt 2{p}_{s,mu }^{* } , 0 < μ < N 0lt mu lt N , λ lambda , and k k are some positive parameters, p s , μ * = p N − p μ 2 N − p s {p}_{s,mu }^{* }=frac{pN-pfrac{mu }{2}}{N-ps} is the critical exponent with respect to the Hardy-Littlewood-Sobolev inequality, and functions V V and M M satisfy the suitable conditions. By proving the compactness results using the fractional version of concentration compactness principle, we establish the existence of nontrivial solutions to this problem.
摘要 本文处理了以下带有电磁场和 Hardy-Littlewood-Sobolev 非线性的 p p 分薛定谔-基尔霍夫方程:M ( [ u ] s , A p ) ( - Δ ) p , A s u + V ( x ) ∣ u ∣ p - 2 u = λ ∫ R N ∣ u ∣ p μ 、s * ∣ x - y ∣ μ d y ∣ u ∣ p μ , s * - 2 u + k ∣ u ∣ q - 2 u , x∈ R N , M({left[u]}_{s,A}^{p}){left(-Delta )}_{p、A}^{s}u+Vleft(x){| u| }^{p-2}u=lambda left(mathop{int }limits_{{mathbb{R}}}^{N}}frac{{| u| }^{p}_{mu ,s}^{* }}{{x-y| }^{mu }}{rm{d}}yright){| u| }^{p}_{mu 、s}^{* }-2}u+k{| u| }^{q-2}u,hspace{1em}xin {{mathbb{R}}}^{N}, where 0 < s < 1 < p 0lt slt 1lt p , p s < N pslt N , p < q < 2 p s , μ * plt qlt 2{p}_{s,mu }^{* }.0 < μ < N 0lt mu lt N , λ lambda , 和 k k 是一些正参数,p s , μ * = p N - p μ 2 N - p s {p}_{s,mu }^{* }=frac{pN-pfrac{mu }{2}}{N-ps} 是关于哈代-利特尔伍德-索博列夫不等式的临界指数,函数 V V 和 M M 满足合适的条件。通过利用分数版的集中紧凑性原理证明紧凑性结果,我们确定了此问题的非小解的存在性。
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引用次数: 0
Binary relations applied to the fuzzy substructures of quantales under rough environment 二元关系应用于粗糙环境下的量子模糊子结构
IF 2 3区 数学 Q1 Mathematics Pub Date : 2024-01-01 DOI: 10.1515/dema-2023-0109
Saqib Mazher Qurashi, Bander Almutairi, Qin Xin, Rani Sumaira Kanwal, Aqsa
Binary relations (BIRs) have many applications in computer science, graph theory, and rough set theory. This study discusses the combination of BIRs, fuzzy substructures of quantale, and rough fuzzy sets. Approximation of fuzzy subsets of quantale with the help of BIRs is introduced. In quantale, compatible and complete relations in terms of aftersets and foresets with the help of BIRs are defined. Furthermore, we use compatible and complete relations to approximate fuzzy substructures of quantale, and these approximations are interpreted by aftersets and foresets. This concept generalizes the concept of rough fuzzy quantale. Finally, using BIRs, quantale homomorphism is used to build a relationship between the approximations of fuzzy substructures of quantale and the approximations of their homomorphic images.
二元关系(BIR)在计算机科学、图论和粗糙集理论中有很多应用。本研究讨论了二元关系、量子的模糊子结构和粗糙模糊集的结合。在 BIRs 的帮助下,介绍了量子态模糊子集的逼近。在 Quantale 中,借助 BIRs 定义了后集和前集的兼容关系和完整关系。此外,我们还利用兼容关系和完整关系来近似量子态的模糊子结构,并用后集和前集解释这些近似。这一概念概括了粗糙模糊量子模型的概念。最后,利用 BIRs,我们利用量子同态建立了量子模糊子结构的近似与其同态图像的近似之间的关系。
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引用次数: 0
Toward automated hail disaster weather recognition based on spatio-temporal sequence of radar images 基于雷达图像时空序列实现冰雹灾害天气自动识别
IF 2 3区 数学 Q1 Mathematics Pub Date : 2024-01-01 DOI: 10.1515/dema-2023-0262
Liuping Wang, Ziyi Chen, Jinping Liu, Jin Zhang, A. Alkhateeb
Hail, an intense convective catastrophic weather, is seriously hazardous to people’s lives and properties. This article proposes a multi-step cyclone hail weather recognition model, called long short-term memory (LSTM)-C3D, based on radar images, integrating attention mechanism and network voting optimization characteristics to achieve intelligent recognition and accurate classification of hailstorm weather based on long short-term memory networks. Based on radar echo data in the strong-echo region, LSTM-C3D can selectively fuse the long short-term time feature information of hail meteorological images and effectively focus on the significant features to achieve intelligent recognition of hail disaster weather. The meteorological scans of 11 Doppler weather radars deployed in various regions of the Hunan Province of China are used as the specific experimental and application objects for extensive validation and comparison experiments. The results show that the proposed method can realize the automatic extraction of radar reflectivity image features, and the accuracy of hail identification in the strong-echo region reaches 91.3%. It can also effectively realize the prediction of convective storm movement trends, laying the theoretical foundation for reducing the misjudgment of extreme disaster weather.
冰雹是一种强对流灾害性天气,严重危害人民生命财产安全。本文提出了一种基于雷达图像的多步骤气旋冰雹天气识别模型,称为长短期记忆(LSTM)-C3D,融合了注意力机制和网络投票优化特性,实现了基于长短期记忆网络的冰雹天气智能识别和准确分类。基于强回波区域的雷达回波数据,LSTM-C3D可选择性地融合冰雹气象图像的长短时特征信息,有效聚焦重要特征,实现冰雹灾害天气的智能识别。以部署在中国湖南省不同地区的 11 部多普勒天气雷达的气象扫描图像作为具体的实验和应用对象,进行了大量的验证和对比实验。结果表明,所提出的方法可以实现雷达反射率图像特征的自动提取,强回波区冰雹识别准确率达到 91.3%。同时还能有效实现对流风暴运动趋势的预测,为减少极端灾害天气的误判奠定了理论基础。
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引用次数: 0
New local fractional Hermite-Hadamard-type and Ostrowski-type inequalities with generalized Mittag-Leffler kernel for generalized h-preinvex functions 对于广义 h 前凸函数,具有广义 Mittag-Leffler 核的新局部分式 Hermite-Hadamard 型和 Ostrowski 型不等式
IF 2 3区 数学 Q1 Mathematics Pub Date : 2024-01-01 DOI: 10.1515/dema-2023-0128
Wenbing Sun, Haiyang Wan
In this study, based on two new local fractional integral operators involving generalized Mittag-Leffler kernel, Hermite-Hadamard inequality about these two integral operators for generalized h h -preinvex functions is obtained. Subsequently, an integral identity related to these two local fractional integral operators is constructed to obtain some new Ostrowski-type local fractional integral inequalities for generalized h h -preinvex functions. Finally, we propose three examples to illustrate the partial results and applications. Meanwhile, we also propose two midpoint-type inequalities involving generalized moments of continuous random variables to show the application of the results.
本研究基于两个涉及广义 Mittag-Leffler 核的新局部分数积分算子,得到了关于广义 h h - 前凸函数的这两个积分算子的 Hermite-Hadamard 不等式。随后,构建了与这两个局部分数积分算子相关的积分标识,从而得到了广义 h h -preinvex 函数的一些新的 Ostrowski 型局部分数积分不等式。最后,我们提出了三个例子来说明部分结果和应用。同时,我们还提出了两个涉及连续随机变量广义矩的中点式不等式,以说明结果的应用。
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引用次数: 0
An inertial shrinking projection self-adaptive algorithm for solving split variational inclusion problems and fixed point problems in Banach spaces 解决巴拿赫空间中分裂变分包容问题和定点问题的惯性收缩投影自适应算法
IF 2 3区 数学 Q1 Mathematics Pub Date : 2024-01-01 DOI: 10.1515/dema-2023-0127
Matlhatsi Dorah Ngwepe, L. Jolaoso, M. Aphane, U. Adiele
In this article, we study the split variational inclusion and fixed point problems using Bregman weak relatively nonexpansive mappings in the p p -uniformly convex smooth Banach spaces. We introduce an inertial shrinking projection self-adaptive iterative scheme for the problem and prove a strong convergence theorem for the sequences generated by our iterative scheme under some mild conditions in real p p -uniformly convex smooth Banach spaces. The algorithm is designed to select its step size self-adaptively and does not require the prior estimate of the norm of the bounded linear operator. Finally, we provide some numerical examples to illustrate the performance of our proposed scheme and compare it with other methods in the literature.
本文研究了在 p p -均匀凸光滑巴拿赫空间中使用布雷格曼弱相对非展开映射的分裂变分包容和定点问题。我们为该问题引入了一种惯性收缩投影自适应迭代方案,并在实 p p - 均匀凸光滑巴拿赫空间中的一些温和条件下,证明了我们的迭代方案所生成序列的强收敛定理。该算法可以自适应地选择步长,并且不需要对有界线性算子的规范进行先验估计。最后,我们提供了一些数值示例来说明我们提出的方案的性能,并将其与文献中的其他方法进行比较。
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引用次数: 0
Some fixed point results on ultrametric spaces endowed with a graph 赋予图形的超对称空间的一些定点结果
IF 2 3区 数学 Q1 Mathematics Pub Date : 2024-01-01 DOI: 10.1515/dema-2023-0132
Özlem Acar, A. S. Özkapu, M. Öztürk
The present article deals with new fixed point theorems by means of G G -strongly contractive maps. The research findings are demonstrated in a spherically complete ultrametric space with a graph for single-valued mappings. The special cases of the results that extend the current ones are offered, along with some examples that illustrate our results. Besides, an application utilized in dynamic programming that endorses the acquired observations is also provided.
本文通过 G G 强收缩映射论述了新的定点定理。研究成果在球面完全超对称空间的单值映射图中得到了证明。我们提供了扩展现有结果的特例,并列举了一些例子来说明我们的结果。此外,我们还提供了一个在动态编程中的应用,该应用认可了所获得的观察结果。
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引用次数: 0
On exact rate of convergence of row sequences of multipoint Hermite-Padé approximants 论多点赫米特-帕代近似值行序列的精确收敛速率
IF 2 3区 数学 Q1 Mathematics Pub Date : 2024-01-01 DOI: 10.1515/dema-2023-0140
N. Bosuwan
In this article, we analyze a rate of attraction of poles of an approximated function to poles of incomplete multipoint Padé approximants and use it to derive a sharp bound on the geometric rate of convergence of multipoint Hermite-Padé approximants to a vector of approximated functions in the Montessus de Ballore theorem when a table of interpolation points is Newtonian.
在本文中,我们分析了近似函数的极点对不完全多点帕代近似值极点的吸引率,并利用它推导出当插值点表为牛顿式时,多点赫米特-帕代近似值对近似函数向量的几何收敛率的尖锐约束。
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引用次数: 0
A study on a type of degenerate poly-Dedekind sums 关于一种退化的多戴金和的研究
IF 2 3区 数学 Q1 Mathematics Pub Date : 2024-01-01 DOI: 10.1515/dema-2023-0121
Yuankui Ma, Lingling Luo, Taekyun Kim, Hongze Li, Wenpeng Zhang
Abstract Dedekind sums and their generalizations are defined in terms of Bernoulli functions and their generalizations. As a new generalization of the Dedekind sums, the degenerate poly-Dedekind sums, which are obtained from the Dedekind sums by replacing Bernoulli functions by degenerate poly-Bernoulli functions of arbitrary indices are introduced in this article and are shown to satisfy a reciprocity relation.
摘要 戴德金和及其广义是根据伯努利函数及其广义定义的。作为戴德金和的一种新的广义,本文介绍了退化多戴德金和,它是通过用任意指数的退化多伯努利函数代替伯努利函数从戴德金和中得到的,并证明它满足互易关系。
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引用次数: 0
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Demonstratio Mathematica
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