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半经典Schrodinger方程的几个分裂数值格式
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作者 许秋滨 《数学杂志》 2025年第2期161-172,共12页
本文研究了半经典的Schrodinger方程的两个分裂龙格-库塔格式和分裂谱格式.给出了格式的稳定性,并研究了当β=0时的平面波解.通过线性化的分析方法可知两个龙格-库塔格式是条件稳定的,谱格式是绝对稳定的.最后给出了格式的截断误差并与... 本文研究了半经典的Schrodinger方程的两个分裂龙格-库塔格式和分裂谱格式.给出了格式的稳定性,并研究了当β=0时的平面波解.通过线性化的分析方法可知两个龙格-库塔格式是条件稳定的,谱格式是绝对稳定的.最后给出了格式的截断误差并与文[1]中的格式进行了数值比较,结果表明本文的格式是有效的和可靠的. 展开更多
关键词 非线性schrodinger方程 分裂龙格-库塔格式 分裂谱格式 差分格式
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High Energy Normalized Solutions for the Schrodinger Equations with Exponential Critical Growth
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作者 ZHANG Xiao-cang XULi-ping 《Chinese Quarterly Journal of Mathematics》 2025年第1期1-19,共19页
In this paper,we study high energy normalized solutions for the following Schr?dinger equation{-Δu+V(x)u+λu=f(u),in R^(2),∫_(R^(2))|u|^(2)dx=c,where c>0,λ∈R will appear as a Lagrange multiplier,V(x)=ω|x|2 rep... In this paper,we study high energy normalized solutions for the following Schr?dinger equation{-Δu+V(x)u+λu=f(u),in R^(2),∫_(R^(2))|u|^(2)dx=c,where c>0,λ∈R will appear as a Lagrange multiplier,V(x)=ω|x|2 represents a trapping potential,and f has an exponential critical growth.Under the appropriate assumptions of f,we have obtained the existence of normalized solutions to the above Schr?dinger equation by introducing a variational method.And these solutions are also high energy solutions with positive energy. 展开更多
关键词 High energy normalized solutions schrodinger equation Trapping potential Exponential critical growth Variational method
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POSITIVE GROUND STATE SOLUTIONS FOR A QUASILINEAR SCHRODINGER EQUATION
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作者 JIN Qing-fei 《数学杂志》 2025年第2期95-110,共16页
This paper is concerned with the positive ground state solutions for a quasilinear Schrodinger equation with a Hardy-type term.We obtain positive ground state solutions for the given quasilinear Schrodinger equation b... This paper is concerned with the positive ground state solutions for a quasilinear Schrodinger equation with a Hardy-type term.We obtain positive ground state solutions for the given quasilinear Schrodinger equation by using a change of variables and variational method. 展开更多
关键词 Quasilinear equation schrodinger equation positive ground state solutions variational methods
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Rogue wave patterns in the nonlinear Schrodinger–Boussinesq system
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作者 Xiaoyu Cheng Qing Huang 《Communications in Theoretical Physics》 2025年第7期25-32,共8页
To the nonlinear Schrodinger–Boussinesq system,with the aid of Adler–Moser polynomials we predict the patterns of higher-order rogue wave solutions containing multiple large parameters.The new interesting rogue wave... To the nonlinear Schrodinger–Boussinesq system,with the aid of Adler–Moser polynomials we predict the patterns of higher-order rogue wave solutions containing multiple large parameters.The new interesting rogue wave patterns of a number of true and predicted solutions are graphically illustrated,including fan-,heart-shaped structures and their skewed versions.The results are significant for both experimental and theoretical studies of rogue wave patterns of integrable systems. 展开更多
关键词 rogue wave nonlinear schrodinger–Boussinesq system Adler–Moser polynomial ASYMPTOTICS
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Derivations of the Schrodinger Algebra on Restricted Simple Modules 被引量:1
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作者 HOU Ruiying WANG Shujuan 《数学进展》 CSCD 北大核心 2024年第5期1012-1018,共7页
Over an algebraically closed field of characteristic p>2,based on the results on the representation theory of special linear Lie algebra sl(2),restricted simple modules L(λ) of the Schrodinger algebra S(1)are dete... Over an algebraically closed field of characteristic p>2,based on the results on the representation theory of special linear Lie algebra sl(2),restricted simple modules L(λ) of the Schrodinger algebra S(1)are determined,and all derivations of S(1)on L(λ)are also obtained.As an application,the first cohomology of S(1)with the coefficient in L(λ)is determined. 展开更多
关键词 schrodinger algebra restricted simple module DERIVATION COHOMOLOGY
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The possible KK^(*)and D^(*)bound and resonance states by solving the Schrodinger equation
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作者 Bao-Xi Sun Qin-Qin Cao Ying-Tai Sun 《Communications in Theoretical Physics》 SCIE CAS CSCD 2024年第10期85-91,共7页
The Schrodinger equation with a Yukawa type of potential is solved analytically.When different boundary conditions are taken into account,a series of solutions are indicated as a Bessel function,the first kind of Hank... The Schrodinger equation with a Yukawa type of potential is solved analytically.When different boundary conditions are taken into account,a series of solutions are indicated as a Bessel function,the first kind of Hankel function and the second kind of Hankel function,respectively.Subsequently,the scattering processes of K^(*)and D^(*)are investigated.In the K^(*)sector,the f_(1)(1285)particle is treated as a K^(*)bound state,therefore,the coupling constant in the K^(*)Yukawa potential can be fixed according to the binding energy of the f_(1)(1285)particle.Consequently,a K^(*)resonance state is generated by solving the Schrodinger equation with the outgoing wave condition,which lies at 1417-i18 MeV on the complex energy plane.It is reasonable to assume that the K^(*)resonance state at 1417-i18 MeV might correspond to the f_(1)(1420)particle in the review of the Particle Data Group.In the D^(*)sector,since the X(3872)particle is almost located at the D^(*)threshold,its binding energy is approximately equal to zero.Therefore,the coupling constant in the D^(*)Yukawa potential is determined,which is related to the first zero point of the zero-order Bessel function.Similarly to the K^(*)case,four resonance states are produced as solutions of the Schrodinger equation with the outgoing wave condition.It is assumed that the resonance states at 3885~i1 MeV,4029-i108 MeV,4328-i191 MeV and 4772-i267 MeV might be associated with the Zc(3900),the X(3940),theχ_(c1)(4274)andχ_(c1)(4685)particles,respectively.It is noted that all solutions are isospin degenerate. 展开更多
关键词 non-Hermitian quantum mechanics schrodinger equation meson-meson interaction one-pion exchanging potential resonance state bound state
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Stability analysis and soliton solutions of the(1+1)-dimensional nonlinear chiral Schrodinger equation in nuclear physics
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作者 Fazal Badshah Kalim U Tariq +2 位作者 Ahmet Bekir S M Raza Kazmi Emad Az-Zo'bi 《Communications in Theoretical Physics》 SCIE CAS CSCD 2024年第9期1-15,共15页
The nonlinear Schrodinger equation equation is one of the most important physical models used in optical fiber theory to explain the transmission of an optical soliton.The field of chiral soliton propagation in nuclea... The nonlinear Schrodinger equation equation is one of the most important physical models used in optical fiber theory to explain the transmission of an optical soliton.The field of chiral soliton propagation in nuclear physics is very interesting because of its numerous applications in communications and ultra-fast signal routing systems.The(1+1)-dimensional chiral dynamical structure that describes the soliton behaviour in data transmission is dealt with in this work using a variety of in-depth analytical techniques.This work has applications in particle physics,ionised science,nuclear physics,optics,and other applied mathematical sciences.We are able to develop a variety of solutions to demonstrate the behaviour of solitary wave structures,periodic soliton solutions,chiral soliton solutions,and bell-shaped soliton solutions with the use of applied techniques.Moreover,in order to verify the scientific calculations,the stability analysis for the observed solutions of the governing model is taken into consideration.In addition,the3-dimensional,contour,and 2-dimensional visuals are supplied for a better understanding of the behaviour of the solutions.The employed strategies are dependable,uncomplicated,and effective;yet have not been utilised with the governing model in the literature that is now accessible.The resulting outcomes have impressive applications across a large number of study areas and computational physics phenomena representing real-world scenarios.The methods applied in this model are not utilized on the given models in previous literature so we can say that these describe the novelty of the work. 展开更多
关键词 SOLITONS the nonlinear schrodinger equation stability analysis chiral solitons exact solutions
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Dynamics of fundamental and double-pole breathers and solitons for a nonlinear Schrodinger equation with sextic operator under non-zero boundary conditions
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作者 Luyao Zhang Xiyang Xie 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第9期268-280,共13页
We study the dynamics of fundamental and double-pole breathers and solitons for the focusing and defocusing nonlinear Schrodinger equation with the sextic operator under non-zero boundary conditions. Our analysis main... We study the dynamics of fundamental and double-pole breathers and solitons for the focusing and defocusing nonlinear Schrodinger equation with the sextic operator under non-zero boundary conditions. Our analysis mainly focuses onthe dynamical properties of simple- and double-pole solutions. Firstly, through verification, we find that solutions undernon-zero boundary conditions can be transformed into solutions under zero boundary conditions, whether in simple-pole ordouble-pole cases. For the focusing case, in the investigation of simple-pole solutions, temporal periodic breather and thespatial-temporal periodic breather are obtained by modulating parameters. Additionally, in the case of multi-pole solitons,we analyze parallel-state solitons, bound-state solitons, and intersecting solitons, providing a brief analysis of their interactions.In the double-pole case, we observe that the two solitons undergo two interactions, resulting in a distinctive “triangle”crest. Furthermore, for the defocusing case, we briefly consider two situations of simple-pole solutions, obtaining one andtwo dark solitons. 展开更多
关键词 double-pole solitons double-pole breathers Riemann-Hilbert problem non-zero boundary con-ditions nonlinear schrodinger equation with sextic operator
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SCATTERING FOR THE FRACTIONAL MAGNETIC SCHRODINGER OPERATORS
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作者 Lei WEI Zhiwen DUAN 《Acta Mathematica Scientia》 SCIE CSCD 2024年第6期2391-2410,共20页
In this paper,we prove the existence of the scattering operator for the fractional magnetic Schrodinger operators.In order to do this,we construct the fractional distorted Fourier transforms with magnetic potentials.A... In this paper,we prove the existence of the scattering operator for the fractional magnetic Schrodinger operators.In order to do this,we construct the fractional distorted Fourier transforms with magnetic potentials.Applying the properties of the distorted Fourier transforms,the existence and the asymptotic completeness of the wave operators are obtained.Furthermore,we prove the absence of positive eigenvalues for fractional magnetic Schrodinger operators. 展开更多
关键词 magnetic schrodinger operators FRACTIONAL SCATTERING distorted Fourier transform
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Schrodinger代数的局部自同构
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作者 生玉秋 《吉林大学学报(理学版)》 CAS 北大核心 2024年第6期1291-1295,共5页
用李代数和线性代数的理论和方法研究Schrodinger代数的局部自同构问题,结合特殊线性李代数的局部自同构结果和Schrodinger代数的自同构形式,刻画Schr dinger代数的局部自同构.
关键词 schrodinger代数 局部自同构 李代数 自同构
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一类含有拟线性项Schrodinger方程的多重正解存在性
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作者 林颖婕 吴丽萍 《福建技术师范学院学报》 2024年第5期25-29,37,共6页
在一维空间中研究一类含有拟线性项β(|u|^(2α))″[|u|]^(2α-2)u的Schrodinger方程,利用山路定理证明了正解的存在性.
关键词 schrodinger方程 正解 拟线性项 山路定理
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(G/G)-展开法与带有Kerr law非线性项的非线性扰动Schrodinger方程的行波解 被引量:2
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作者 张再云 钟娟 +3 位作者 刘姣 彭丹 豆莎莎 高婷 《湖南理工学院学报(自然科学版)》 CAS 2012年第3期8-10,29,共4页
研究带有Kerr law非线性项的非线性扰动的Schrodinger方程.利用文献[1]中的(G/G)-展开法,得到其行波解,而且行波解可由双曲线函数、三角函数和有理函数表示.
关键词 (G G')-展开法 schrodinger方程 行波解
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不稳定非线性Schrodinger方程新精确解 被引量:3
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作者 马志民 孙峪怀 《南昌大学学报(理科版)》 CAS 北大核心 2020年第1期1-5,共5页
构造精确解是研究非线性演化方程的一个重要分支.利用(1/G′)和(1/G)-展开方法,借助符号计算系统-Maple,构造了不稳定非线性Schr?dinger方程新的精确解。
关键词 不稳定非线性schrodinger方程 (1/G′)-展开方法 (1/G)-展开方法 精确解
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The Estimates L_(1)-L_(∞) for the Reduced Radial Equation of Schrodinger
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作者 Herminio Blancarte 《Advances in Pure Mathematics》 2019年第5期480-522,共43页
Estimates of the type L1-L∞ for the Schr&#246;dinger Equation on the Line and on Half-Line with a regular potential V(x), express the dispersive nature of the Schr&#246;dinger Equation and are the essential e... Estimates of the type L1-L∞ for the Schr&#246;dinger Equation on the Line and on Half-Line with a regular potential V(x), express the dispersive nature of the Schr&#246;dinger Equation and are the essential elements in the study of the problems of initial values, the asymptotic times for large solutions and Scattering Theory for the Schr&#246;dinger equation and non-linear in general;for other equations of Non-linear Evolution. In general, the estimates Lp-Lp' express the dispersive nature of this equation. And its study plays an important role in problems of non-linear initial values;likewise, in the study of problems nonlinear initial values;see [1] [2] [3]. On the other hand, following a series of problems proposed by V. Marchenko [4], that we will name Marchenko’s formulation, and relate it to a generalized version of Theorem 1 given in [1], the main theorem (Theorem 1) of this article provides a transformation operator W?that transforms the Reduced Radial Schr&#246;dinger Equation (RRSE) (whose main characteristic is the addition a singular term of quadratic order to a regular potential V(x)) in the Schr&#246;dinger Equation on Half-Line (RSEHL) under W. That is to say;W?eliminates the singular term of quadratic order of potential V(x) in the asymptotic development towards zero and adds to the potential V(x) a bounded term and a term exponentially decrease fast enough in the asymptotic development towards infinity, which continues guaranteeing the uniqueness of the potential V(x) in the condition of the infinity boundary. Then the L1-L∞ estimates for the (RRSE) are preserved under the transformation operator , as in the case of (RSEHL) where they were established in [3]. Finally, as an open question, the possibility of extending the L1-L∞ estimates for the case (RSEHL), where added to the potential V(x) an analytical perturbation is mentioned. 展开更多
关键词 The schrodinger Equation on the Half-Line Reduced Radial Equation of schrodinger Conditions Sufficient to Establish the Uniqueness of the Potential and Boundary Conditions Are Named the Generalized Theorem 1 The Marchenko’s Formulation Reduction of Estimates L_(1)-L_(∞) for the Reduced Radial Equation of schrodinger to Equation on Half-Line
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非线性耗散Schrodinger方程的紧致差分格式 被引量:1
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作者 王廷春 张雯 王国栋 《工程数学学报》 CSCD 北大核心 2018年第6期693-706,共14页
本文对非线性耗散Schr?dinger方程提出并分析了两个紧致有限差分格式.由于数值解的先验估计很难得到,这给格式的收敛性分析带来本质困难.为此,本文将非线性项的系数函数光滑截断为一个全局Lipschitz连续函数,并结合标准的能量方法,在对... 本文对非线性耗散Schr?dinger方程提出并分析了两个紧致有限差分格式.由于数值解的先验估计很难得到,这给格式的收敛性分析带来本质困难.为此,本文将非线性项的系数函数光滑截断为一个全局Lipschitz连续函数,并结合标准的能量方法,在对网格比没有任何要求的前提下建立了格式在最大模意义下的最优误差估计,证明数值解在空间和时间方向的收敛阶在最大模意义下分别为4阶和2阶.数值结果验证了理论分析的正确性,并展示了新格式较已有格式的优越性. 展开更多
关键词 非线性耗散schrodinger方程 紧致差分格式 最优逐点误差估计
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关于氢原子体系Schrodinger方程的讨论 被引量:3
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作者 高峰 周娟娟 +1 位作者 张登玉 张军民 《衡阳师范学院学报》 2010年第6期27-30,共4页
通过讨论氢原子体系的特点,将氢原子当作两体问题进行化简,推导出氢原子体系的定态Schrodinger方程。得到:方程中的质量不是电子的质量,也不是原子核的质量,而是系统的折合质量。
关键词 氢原子体系 定态schrodinger方程 折合质量
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解Schrodinger方程u_(t)=iu_(xx)的线方法 被引量:1
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作者 廖晓峰 虞厥邦 《电子科技大学学报》 EI CAS CSCD 北大核心 1993年第6期625-630,共6页
对具有周期解的Schrodingcr方程u_=iu_(xx)(i^2=-1),用线方法构造了任意阶精度O(Δt^p+△x^(2q))(p,q为自然数)的两层和三层显格式。讨论了两层格式1≤p≤4,1≤q≤5及三层格式p=2,4,6,8,10,1≤q≤5的情形,得到了一系列格式,其精度和稳... 对具有周期解的Schrodingcr方程u_=iu_(xx)(i^2=-1),用线方法构造了任意阶精度O(Δt^p+△x^(2q))(p,q为自然数)的两层和三层显格式。讨论了两层格式1≤p≤4,1≤q≤5及三层格式p=2,4,6,8,10,1≤q≤5的情形,得到了一系列格式,其精度和稳定性都优于现有格式。 展开更多
关键词 schrodinger方程 线方法 显格式 任意阶精度 稳定性
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应用Riccati-Bernoulli辅助方程求解广义非线性Schrodinger方程和(2+1)维非线性Ginzburg-Landau方程 被引量:7
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作者 石兰芳 王明灿 钱正雅 《应用数学和力学》 CSCD 北大核心 2020年第7期786-795,共10页
研究了Riccati-Bernoulli辅助方程法,并应用这种方法得到广义非线性Schrodinger方程和(2+1)维非线性Ginzburg-Landau方程的精确行波解.这些解包括有理函数、三角函数、双曲函数和指数函数.应用这种方法求解过程简洁有效.该研究对于数学... 研究了Riccati-Bernoulli辅助方程法,并应用这种方法得到广义非线性Schrodinger方程和(2+1)维非线性Ginzburg-Landau方程的精确行波解.这些解包括有理函数、三角函数、双曲函数和指数函数.应用这种方法求解过程简洁有效.该研究对于数学物理方程领域诸多非线性偏微分方程精确解的探究具有重要的意义. 展开更多
关键词 Riccati-Bernoulli辅助方程法 广义非线性schrodinger方程 (2+1)维非线性Ginzburg-Landau方程 行波解
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Schrodinger方程双线性元的超收敛分析和外推 被引量:1
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作者 王萍莉 石东洋 《山东大学学报(理学版)》 CAS CSCD 北大核心 2014年第10期66-71,共6页
研究了Schrdinger方程双线性有限元逼近。利用导数转移技巧和该单元的高精度结果,得到了H1模意义下O(h2)阶的超逼近性质。同时利用插值后处理技术,给出了H1模意义下整体超收敛结果。近一步地,通过构造一个新的外推格式,导出了比传统... 研究了Schrdinger方程双线性有限元逼近。利用导数转移技巧和该单元的高精度结果,得到了H1模意义下O(h2)阶的超逼近性质。同时利用插值后处理技术,给出了H1模意义下整体超收敛结果。近一步地,通过构造一个新的外推格式,导出了比传统有限元误差高两阶的O(h3)阶的外推解。 展开更多
关键词 schrodinger方程 双线性元 超收敛 外推
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变系数F展开法求解非线性Schrodinger方程的精确解 被引量:2
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作者 曹娜 徐丽阳 尹晓军 《应用数学》 北大核心 2023年第1期161-169,共9页
本文基于变系数F展开法,并借助Mathematica数学软件,求解了水平科氏力作用下Rossby波振幅满足的非线性Schrodinger方程,得到一系列Jacobi椭圆函数解,以及当模数m→1和m→0时由其退化的双曲函数解和三角函数解,并绘制它们的三维图形.扩... 本文基于变系数F展开法,并借助Mathematica数学软件,求解了水平科氏力作用下Rossby波振幅满足的非线性Schrodinger方程,得到一系列Jacobi椭圆函数解,以及当模数m→1和m→0时由其退化的双曲函数解和三角函数解,并绘制它们的三维图形.扩展了变系数F展开法求解非线性偏微分方程的应用范畴.同时也为非线性Schr?dinger方程得到更多形式的精确解. 展开更多
关键词 变系数F展开法 非线性schrodinger方程 JACOBI椭圆函数解
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