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- Numerical differentiation by a Fourier extension method with super-order regularization
- APPLIED MATHEMATICS AND COMPUTATIONChen, Baoqin Zhao, Zhenyu Li, Zhi Meng, Zehong 出版年:2018
- Based on the idea of Fourier extension, we develop a new method for numerical differentiation. The Tikhonov regularization method with a super-order penalty term is presented to deal with the illposdness of the problem a...
- Uniqueness of entire functions sharing two values with their difference operators
- ADVANCES IN DIFFERENCE EQUATIONSLi, Sheng Mei, Duan Chen, BaoQin 出版年:2017
- In this paper, we mainly discuss the uniqueness problem when an entire function shares 0 CM and nonzero complex constant a IM with its difference operator. We also consider the general case where they share two distinct ...
- GSSA: A Network for Short- to Medium-Term Regional Sea Surface Temperature Prediction
- IEEE GEOSCIENCE AND REMOTE SENSING LETTERSXiao, Ling Li, Sheng Chen, Baoqin 出版年:2024
- Accurate prediction of sea surface temperature (SST) is critical in marine sciences and related disciplines. The task is rendered challenging by complex environmental factors and the inherent nonlinearity of time. Curren...
- Identifying an Unknown Source in the Poisson Equation with a Super Order Regularization Method
- INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODSLi, Zhi Zhao, Zhenyu Meng, Zehong Chen, Baoqin Mei, Duan 出版年:2020
- This paper develops a new method to deal with the problem of identifying the unknown source in the Poisson equation. We obtain the regularization solution by the Tikhonov regularization method with a super-order penalty ...
- Uniqueness of meromorphic solutions sharing values with a meromorphic function to <i>w</i>(<i>z</i>+1)<i>w</i>(<i>z</i>-1) = <i>h</i>(<i>z</i>)<i>w<SUP>m</SUP></i>(z<i>)</i>
- ADVANCES IN DIFFERENCE EQUATIONSChen, BaoQin Li, Sheng 出版年:2019
- For the nonlinear difference equations of the form w(z + 1)w(z -1) = h(z)w(m)(z), where h(z) is a nonzero rational function and m = +/- 2,+/- 1, 0, we show that its transcendental meromorphic solution is mainly determine...
- Uniqueness of meromorphic solutions of the difference equation R1(z)f(z+1)+R2(z)f(z)=R3(z)
- ADVANCES IN DIFFERENCE EQUATIONSLi, Sheng Chen, BaoQin 出版年:2019
- This paper mainly concerns the uniqueness of meromorphic solutions of first order linear difference equations of the form where R1(z)?0, R2(z), R3(z) are rational functions. Our results indicate that the finite order tra...
- Development of Driving Cycle for Light Vehicle Based on the AP Clustering Method
- Mechanisms and Machine ScienceChen, Jiarui Chen, Baoqin 出版年:2021
- In order to establish the light vehicle driving cycle of Fuzhou city, a driving cycle construction method was proposed based on t-SNE combined with AP clustering algorithm, which can well reflects non-linear relationship...
- Properties of meromorphic solutions of first-order differential-difference equations
- OPEN MATHEMATICSWu, Lihao Chen, Baoqin Li, Sheng 出版年:2023
- For the first-order differential-difference equations of the form A(z)f (z + 1) + B(z)f '(z) + C(z)f (z) =F(z),where A(z), B(z), C(z), and F(z) are polynomials, the existence, growth, zeros, poles, and fixed points of th...
- Unicity of Meromorphic Solutions of Some Nonlinear Difference Equations
- 理论数学进展(英文)Baoqin Chen 出版年:2019
- This paper is to study the unicity of transcendental meromorphic solutions to some nonlinear difference equations. Let be a nonzero rational function. Consider the uniqueness of transcendental meromorphic solutions to so...
- 关键词:Unicity Meromorphic Solution Difference Equation 被引量:0
- Spatial and Temporal Prediction of Ozone Concentration in the Pearl River Delta Region Based on a Dynamic Graph Convolutional Network
- SSRNYang, Tongshu Li, Sheng Chen, Baoqin 出版年:2024
- The variation of ozone (O3) concentration is closely related to other meteorological factors such as temperature and wind speed, and there is significant dynamic uncertainty, making related research very complex and diff...
- Some results on entire functions that share one value with their difference operators
- ADVANCES IN DIFFERENCE EQUATIONSChen, BaoQin Li, Sheng Chai, Fujie 出版年:2018
- In this paper, we give some results on entire functions that share one value with their difference operators. In particular, we prove the following result, which can be regarded as a difference analogue of a result of J....
- 大数据时代下数学建模课程教学改革探讨
- 《西部素质教育》陈宝琴 李升 出版年:2018
- 文章简要回顾了数学建模课程和数学建模竞赛在国内外的发展历程,并结合近年来我校开展数学建模竞赛活动和数学建模课程教学的实际状况,探讨了大数据时代下数学建模课程教学改革的必要性,并给出相关改革建议。
- 关键词:数学建模 建模竞赛 课程建设 被引量:0
- Some unity results on entire functions and their difference operators related to 4 CM theorem
- JOURNAL OF INEQUALITIES AND APPLICATIONSChen, BaoQin Li, Sheng 出版年:2020
- This paper is to consider the unity results on entire functions sharing two values with their difference operators and to prove some results related to 4 CM theorem. The main result reads as follows: Let f (z) be a nonco...
- 高等数学课程思政的思考与实例
- 《中文科技期刊数据库(全文版)教育科学》陈宝琴 出版年:2021
- 近年来,在党中央和国家的指导下,课程思政已经成为高等院校进行教学教育改革研究的重要内容,受到了广泛的关注。越来越多的高校教师针对不同的课程,开展了深入的课程思政研究。高等数学是非数学专业的大部分大学生最重要的数学类基础课...
- 关键词:课程思政 高等数学 德育 教学设计 被引量:0
- Attention Adaptive Temporal Graph Convolutional Network for Long-Term Seasonal Sea Surface Temperature Forecasting
- IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSINGXiao, Ling Yang, Peihao Wang, Yuxue Li, Sheng Chen, Baoqin 出版年:2024
- Sea surface temperature (SST) plays a crucial role in the global meteorological system, particularly as long-term seasonal variations are significant for analyzing SST anomalies and supporting long-term climate decision-...
- 分析数学教学中的常用函数及应用
- 《文理导航》陈宝琴 出版年:2018
- 在数学教学中,一个合适的例子,特别是反例,可以帮助学生加深对定义、概念、定理和命题的理解,纠正在学习中容易出现的错误认识。本文总结了三个在数学分析教学中的常用函数,并举例说明了它们在教学中的一些具体应用。
- 关键词:数学分析 反例 互动教学 被引量:0
- Unicity of Meromorphic Solutions of the Pielou Logistic Equation
- DISCRETE DYNAMICS IN NATURE AND SOCIETYLi, Sheng Chen, Baoqin 出版年:2020
- THis paper mainly considers the unicity of meromorphic solutions of the Pielou logistic equation y(z + 1). ((R(z)y(z))/ (Q(z) + P(z)y(z))), where P(z), Q(z), and R(z) are nonzero polynomials. It shows that the finite ord...
- Risk prediction model of bank telecommunication fraud based on XGBoost
- Proceedings of SPIE - The International Society for Optical EngineeringWu, Siyuan Yang, Derong Ge, Wenjun Chen, Baoqin 出版年:2023
- The digital economy is booming, but cybercrimes and telecommunication frauds are emerging one after another. How to detect fraudulent behaviours and prevent the occurrence of crimes is a significant challenge. This paper...
- 与其导数分担两个公共值的亚纯函数的唯一性
- 《理论数学》陈宝琴 李志 李升 出版年:2018
- 本文研究了与其导数分担两个公共值的亚纯函数的唯一性,并证明了一些有趣的结果。
- 关键词:亚纯函数 Nevanlinna理论 唯一性 被引量:0
- 一类差分潘勒韦方程亚纯解的性质
- 《应用数学进展》陈宝琴 李升 出版年:2018
- 本文研究了一类的形如w(z+1)w(z?1) = h(z)w2(z)的差分潘勒韦方程,其中h(z)∈ S(w)为有理函数,得到以下结论:1) 若w只有有限个零点和极点,则ρ (w)∈{1,2}且w = Rea2z2+a1...
- 关键词:差分潘勒韦方程 增长级 极点 零点 被引量:0
- 基于竞赛引导的数学建模课程建设探讨
- 《现代职业教育》李升 陈宝琴 石雄辉 出版年:2018
- 简要回顾了数学建模课程和数学建模竞赛在国内外的发展历程,并结合近年来广东海洋大学数学与计算机学院,开展数学建模竞赛活动和数学建模课程教学的实际状况,探讨基于竞赛引导的数学建模课程建设的优缺点,并给出一些建议。
- 关键词:数学建模 建模竞赛 课程建设 被引量:0
- Gol’dberg-Grinshtein型对数导数估计
- 《理论数学》李升 陈宝琴 出版年:2017
- 通过应用改进的Kolokolniov引理,考虑Gol'dberg-Grinshtein型对数导数估计,将现有结果中的常数改进为4.5206。特别地,对零点和极点都是实数的亚纯函数,将相应的常数改进为3.8018。
- 关键词:亚纯函数 Nevanlinna理论 对数导数 被引量:0