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Properties of Solutions to Fractional Laplace Equation with Singular Term 具有奇异项的分数阶拉普拉斯方程解的性质
IF 0.3 4区 数学 Q4 MATHEMATICS, APPLIED Pub Date : 2023-06-01 DOI: 10.4208/jpde.v36.n2.4
Wang Xinjing
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引用次数: 0
Life-Span of Classical Solutions to a Semilinear Wave Equation with Time-Dependent Damping 具有时变阻尼的半线性波动方程经典解的寿命
IF 0.3 4区 数学 Q4 MATHEMATICS, APPLIED Pub Date : 2023-06-01 DOI: 10.4208/jpde.v36.n3.1
F. Guo, Jinling Liang null, Changwang Xiao
. This paper is concerned with the Cauchy problem for a semilinear wave equation with a time-dependent damping. In case that the space dimension n = 1 and the nonlinear power is bigger than 2, the life-span (cid:101) T ( ε ) and global existence of the classical solution to the problem has been investigated in a unified way. More precisely, with respect to different values of an index K , which depends on the time-dependent damping and the nonlinear term, the life-span (cid:101) T ( ε ) can be estimated below by ε − p 1 − K , e ε − p or + ∞ , where ε is the scale of the compact support of the initial data.
. 研究一类具有时变阻尼的半线性波动方程的柯西问题。在空间维数n = 1且非线性幂大于2的情况下,统一地研究了该问题经典解的寿命(cid:101) T (ε)和整体存在性。更准确地说,对于依赖于时间相关阻尼和非线性项的指标K的不同值,寿命(cid:101) T (ε)可以用ε−p 1−K, e ε−p或+∞来估计,其中ε是初始数据的紧支持的尺度。
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引用次数: 0
Global Well-Posedness and Asymptotic Behavior for the 2D Subcritical Dissipative Quasi-Geostrophic Equation in Critical Fourier-Besov-Morrey Spaces 临界Fourier-Besov-Morrey空间中二维次临界耗散拟地转方程的全局适定性和渐近性
IF 0.3 4区 数学 Q4 MATHEMATICS, APPLIED Pub Date : 2023-01-01 DOI: 10.4208/jpde.v36.n1.1
Achraf Azanzal, Chakir Allalou null, Adil Abbassi
. In this paper, we study the subcritical dissipative quasi-geostrophic equation. By using the Littlewood Paley theory, Fourier analysis and standard techniques we prove that there exists v a unique global-in-time solution for small initial data be-longing to the critical Fourier-Besov-Morrey spaces FN 3 − 2 α + λ − 2 p p , λ , q . Moreover, we show the asymptotic behavior of the global solution v . i.e., k v ( t ) k FN 3 − 2 α + λ − 2 p p , λ , q decays to zero as time goes to infinity.
. 本文研究了亚临界耗散准地转方程。利用Littlewood Paley理论、傅里叶分析和标准技术,证明了在临界傅里叶- besov - morrey空间FN 3−2 α + λ−2 p p, λ, q下存在唯一的全局实时解。此外,我们还证明了全局解v的渐近性质。即k v (t) k FN 3−2 α + λ−2 p p, λ, q随着时间趋于无穷衰减为零。
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引用次数: 0
Discrete Morse Flow for Yamabe Type Heat Flows 离散莫尔斯流的Yamabe型热流
IF 0.3 4区 数学 Q4 MATHEMATICS, APPLIED Pub Date : 2023-01-01 DOI: 10.4208/jpde.v36.n1.3
Ma Li null, Weiqiong Zheng
. In this paper, we study the discrete Morse flow for either Yamabe type heat flow or nonlinear heat flow on a bounded regular domain in the whole space. We show that under suitable assumptions on the initial data g one has a weak approxi-mate discrete Morse flow for the Yamabe type heat flow on any time interval. This phenomenon is very different from the smooth Yamabe flow, where the finite time blow up may exist.
. 本文研究了整个空间中有界正则域上Yamabe型热流和非线性热流的离散莫尔斯流。我们证明了在初始数据g的适当假设下,在任何时间间隔上的Yamabe型热流都具有弱近似离散莫尔斯流。这种现象与平滑的山边流非常不同,后者可能存在有限时间的爆炸。
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引用次数: 0
A De Giorgi Type Result to Divergence Degenerate Elliptic Equation with Bounded Coefficients Related To Hörmander's Vector Fields 与Hörmander矢量场相关的有界系数散度退化椭圆方程的一个De Giorgi型结果
IF 0.3 4区 数学 Q4 MATHEMATICS, APPLIED Pub Date : 2023-01-01 DOI: 10.4208/jpde.v36.n1.2
Lingling Hou
. In this paper, we consider the divergence degenerate elliptic equation with bounded coefficients constructed by H¨ormander’s vector fields. We prove a De Giorgi type result, i.e., the local H¨older continuity for the weak solutions to the equation by providing a De Giorgi type lemma and extending the Moser iteration to the setting here. As a consequence, the Harnack inequality of weak solutions is also given
. 本文研究了由H¨ormander向量场构造的带有界系数的散度退化椭圆方程。我们通过提供一个De Giorgi型引理并将Moser迭代推广到这里的集合,证明了方程弱解的一个De Giorgi型结果,即局部H¨old连续性。同时给出了弱解的哈纳克不等式
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引用次数: 0
Stochastic Averaging Principle for Mixed Stochastic Differential Equations 混合随机微分方程的随机平均原理
IF 0.3 4区 数学 Q4 MATHEMATICS, APPLIED Pub Date : 2022-06-01 DOI: 10.4208/jpde.v35.n3.3
Zhi Li, Yarong Peng null, Y. Jing
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引用次数: 0
Global Existence and Time-decay Rates of Solutions to 2D Magneto-micropolar Fluid Equations with Partial Viscosity 具有部分黏度的二维磁微极流体方程解的整体存在性和时间衰减率
IF 0.3 4区 数学 Q4 MATHEMATICS, APPLIED Pub Date : 2022-06-01 DOI: 10.4208/jpde.v35.n2.5
Yuzhu Wang null, Yuzhu Wang
. In this paper, we investigate the initial value problem for the two-dimensional magneto-micropolar fluid equations with partial viscosity. We prove that global existence of smooth large solutions by the energy method. Furthermore, with aid of the Fourier splitting methods, optimal time-decay rates of global smooth large solutions are also established.
. 本文研究了具有部分粘性的二维磁微极流体方程的初值问题。用能量法证明了光滑大解的整体存在性。此外,利用傅里叶分裂方法,建立了全局光滑大解的最优时间衰减率。
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引用次数: 1
A Weighted Singular Trudinger-Moser Inequality 加权奇异Trudinger-Moser不等式
IF 0.3 4区 数学 Q4 MATHEMATICS, APPLIED Pub Date : 2022-06-01 DOI: 10.4208/jpde.v35.n3.2
YU Peng
. In this paper, we obtained the extremal function for a weighted singular Trudinger-Moser inequality by blow-up analysis in the Euclidean space R 2 . This ex-tends recent results of Hou (J. Inequal. Appl., 2018) and similar result was proved by Zhu (Sci. China Math., 2021).
. 本文在欧几里德空间r2中,利用爆破分析得到了一类加权奇异Trudinger-Moser不等式的极值函数。这扩展了最近侯(J.)不等式的结果。达成。, 2018),类似的结果也被朱(Sci。中国数学。, 2021)。
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引用次数: 0
Dynamics for Three Dimensional Generalized Navier- Stokes Equations with Delay 三维广义Navier- Stokes时滞方程动力学
IF 0.3 4区 数学 Q4 MATHEMATICS, APPLIED Pub Date : 2022-06-01 DOI: 10.4208/jpde.v35.n2.2
Rui Lu, Chunxiao Guo, Xin-Guang Yang null, P. Zhang
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引用次数: 1
Study of Stability Criteria of Numerical Solution of Ordinary and Partial Differential Equations Using Euler’s and Finite Difference Scheme 用欧拉格式和有限差分格式研究常微分方程和偏微分方程数值解的稳定性判据
IF 0.3 4区 数学 Q4 MATHEMATICS, APPLIED Pub Date : 2022-06-01 DOI: 10.4208/jpde.v35.n3.6
Najmuddin Ahmad null, Shiv Charan
. In this paper we have discussed solution and stability analysis of ordinary and partial differential equation with boundary value problem. We investigated pe-riodic stability in Eulers scheme and also discussed PDEs by finite difference scheme. Numerical example has been discussed finding nature of stability. All given result more accurate other than existing methods.
. 本文讨论了带边值问题的常微分方程和偏微分方程的解及其稳定性分析。研究了欧拉格式的周期稳定性,并用有限差分格式讨论了偏微分方程的周期稳定性。讨论了数值算例,找出了稳定性的性质。所得结果比现有方法更准确。
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引用次数: 0
期刊
Journal of Partial Differential Equations
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