Guolin Qin

ORCID: 0000-0003-1870-3970
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Research Areas
  • Advanced Mathematical Physics Problems
  • Nonlinear Partial Differential Equations
  • Navier-Stokes equation solutions
  • Advanced Mathematical Modeling in Engineering
  • Nonlinear Waves and Solitons
  • Differential Equations and Boundary Problems
  • Geometric Analysis and Curvature Flows
  • Nonlinear Differential Equations Analysis
  • Stability and Controllability of Differential Equations
  • Computational Fluid Dynamics and Aerodynamics
  • Fluid Dynamics and Turbulent Flows
  • Numerical methods in inverse problems
  • Gas Dynamics and Kinetic Theory
  • Ocean Waves and Remote Sensing
  • Advancements in Semiconductor Devices and Circuit Design
  • Spectral Theory in Mathematical Physics
  • Silicon Carbide Semiconductor Technologies
  • advanced mathematical theories
  • Advanced Differential Equations and Dynamical Systems
  • Geometry and complex manifolds
  • Algebraic Geometry and Number Theory
  • Coastal and Marine Dynamics
  • Semiconductor materials and devices

University of Chinese Academy of Sciences
2019-2024

Peking University
2023-2024

Chinese Academy of Sciences
2020-2024

Academy of Mathematics and Systems Science
2022

Université Sorbonne Paris Nord
2021

Yeshiva University
2021

Beihang University
2018-2021

Jiangxi Science and Technology Normal University
2021

China Electronics Technology Group Corporation
2011

10.1016/j.aim.2018.02.016 article EN publisher-specific-oa Advances in Mathematics 2018-02-13

In this paper, we are concerned with the fractional and higher order H\'{e}non-Hardy type equations \begin{equation*} (-\Delta)^{\frac{\alpha}{2}}u(x)=f(x,u(x)) \,\,\,\,\,\,\,\,\,\,\,\, \text{in} \,\,\, \mathbb{R}^{n}, \mathbb{R}^{n}_{+} \text{or} \Omega \end{equation*} $n>\alpha$, $0<\alpha<2$ or $\alpha=2m$ $1\leq m<\frac{n}{2}$. We first consider typical case $f(x,u)=|x|^{a}u^{p}$ $a\in(-\alpha,\infty)$ $0<p<p_{c}(a):=\frac{n+\alpha+2a}{n-\alpha}$. By using method of scaling spheres,...

10.1093/imrn/rnac079 article EN International Mathematics Research Notices 2022-03-15

10.1007/s12220-020-00492-1 article EN Journal of Geometric Analysis 2020-08-08

In this paper, we are concerned with the following equations \begin{equation*} \\\begin {cases} (-\Delta )^{m+\frac {\alpha }{2}}u(x)=f(x,u,Du,\cdots ), x\in \mathbb {R}^{n}, \\ u\in C^{2m+[\alpha ],\{\alpha \}+\epsilon }_{loc}\cap \mathcal {L}_{\alpha }(\mathbb {R}^{n}), u(x)\geq 0, {R}^{n} \end{cases}\end{equation*} involving higher-order fractional Laplacians. By introducing a new approach, prove super poly-harmonic properties for nonnegative solutions to above equations. Our theorem...

10.1090/tran/8389 article EN Transactions of the American Mathematical Society 2021-02-10

In this paper, we are mainly concerned with the physically interesting static Schrödinger--Hartree--Maxwell type equations $(-\Delta)^{s}u(x)=(\frac{1}{|x|^{\sigma}}\ast |u|^{p})u^{q}(x) \,\,\ {in} \,\,\, \mathbb{R}^{n}$ involving higher-order or fractional Laplacians, where $n\geq1$, $0<s:=m+\frac{\alpha}{2}<\frac{n}{2}$, $m\geq0$ is an integer, $0<\alpha\leq2$, $0<\sigma<n$, $0<p\leq\frac{2n-\sigma}{n-2s}$, and $0<q\leq\frac{n+2s-\sigma}{n-2s}$. We first prove super poly-harmonic...

10.1137/20m1341908 article EN SIAM Journal on Mathematical Analysis 2021-01-01

.In this paper, without any assumption on \(v\) and under the extremely mild \(u(x)=O(|x|^{K})\) at \(\infty\) for some \(K\gg 1\) arbitrarily large, we prove classification of solutions to following conformally invariant system with mixed order exponentially increasing nonlinearity in \(\mathbb{R}^{2}:\begin {cases} (-\Delta )^{\frac {1}{2}}u(x)=e^{pv(x)}, \qquad x\in \mathbb {R}^{2}, \\ -\Delta v(x)=u^{4}(x), {R}^{2},\end {cases}\) where \(p\in (0,+\infty )\) , \(u\geq 0\) that satisfies...

10.1137/22m1499650 article EN SIAM Journal on Mathematical Analysis 2023-06-13

10.1016/j.jde.2020.05.026 article EN publisher-specific-oa Journal of Differential Equations 2020-06-05

Abstract In this paper, we are concerned with the Hardy–Hénon equations and . Inspired by Serrin Zou [25], prove Liouville theorems for nonnegative solutions to above (Theorem 1.1 Theorem 1.3), that is, unique solution is

10.1002/mana.201800532 article EN Mathematische Nachrichten 2020-04-22

In this paper, we first establish decay estimates for the fractional and higher-order H\'enon-Lane-Emden systems by using a nonlocal average integral estimates, which deduce result of non-existence. Next, apply method scaling spheres introduced in \cite{DQ2} to derive Liouville type theorem. We also construct an interesting example on super $\frac{\alpha}{2}$-harmonic functions (Proposition 1.2).

10.3934/dcds.2020361 article EN Discrete and Continuous Dynamical Systems 2020-11-04

In this paper, we consider the critical order Hardy-Hénon equations \begin{equation*} (-Δ)^{\frac{n}{2}}u(x)=\frac{u^{p}(x)}{|x|^{a}}, \,\,\,\,\,\,\,\,\,\,\, x \, \in \,\, \mathbb{R}^{n}, \end{equation*} where $n\geq4$ is even, $-\infty

10.48550/arxiv.1808.06609 preprint EN other-oa arXiv (Cornell University) 2018-01-01

In this paper, we are concerned with the non-critical higher order Lane-Emden-Hardy equations \begin{equation*} (-\Delta)^{m}u(x)=\frac{u^{p}(x)}{|x|^{a}} \,\,\,\,\,\,\,\,\,\,\,\, \text{in} \,\,\, \mathbb{R}^{n} \end{equation*} $n\geq3$, $1\leq m<\frac{n}{2}$, $0\leq a<2m$, $1<p<\frac{n+2m-2a}{n-2m}$ if a<2$, and $1<p<\infty$ $2\leq a<2m$. We prove Liouville theorems for nonnegative classical solutions to above (Theorem \ref{Thm0}), that is, unique solution is $u\equiv0$. As an application,...

10.48550/arxiv.1808.10771 preprint EN other-oa arXiv (Cornell University) 2018-01-01

In this paper, we construct smooth travelling counter-rotating vortex pairs with circular supports for the generalized surface quasi-geostrophic equation. These are analogues of Lamb dipoles two-dimensional incompressible Euler The solutions obtained by maximization energy over some appropriate classes admissible functions. We establish uniqueness maximizers and compactness maximizing sequences in our variational setting. Using these facts, further prove orbital stability gSQG

10.1093/imrn/rnab371 article EN International Mathematics Research Notices 2021-12-23

In this paper, we aim to introduce the method of scaling spheres (MSS) as a unified approach Liouville theorems on general domains in $\mathbb R^n$, and apply it establish arbitrary unbounded or bounded MSS applicable for ($\leq n$-th order) PDEs integral equations without translation invariance with singularities. The set includes any generalized radially convex complementary sets their closures, which is invariant under Kelvin transforms maximal collection simply connected such that works....

10.48550/arxiv.2302.13988 preprint EN other-oa arXiv (Cornell University) 2023-01-01
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