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In this article we continue with the research initiated in our previous work on singular Liouville equations with quantized singularity. The main goal of this article is to prove that as long as the bubbling solutions violate the spherical…

Analysis of PDEs · Mathematics 2022-07-19 Juncheng Wei , Lei Zhang

In this article we establish a vanishing theorem for singular Liouville equation with quantized singular source. If a blowup sequence tends to infinity near a quantized singular source and the blowup solutions violate the spherical Harnack…

Analysis of PDEs · Mathematics 2024-11-01 Juncheng Wei , Lei Zhang

On $(M,g)$ a compact riemannian $4-$manifold we consider the prescribed $Q-$curvature equation defined on $M$ with finite singular sources. We first prove a classification theorem for singular Liouville equations defined on $\mathbb R^4$…

Analysis of PDEs · Mathematics 2022-01-25 Mohameden Ahmedou , Lina Wu , Lei Zhang

For a singular Liouville equation, it is plausible that a non-simple blowup phenomenon occurs around a quantized singular pole. The presence of complex blowup profiles of bubbling solutions presents substantial challenges in applications.…

Analysis of PDEs · Mathematics 2024-09-24 Teresa D'Aprile , Juncheng Wei , Lei Zhang

We analyse a blow-up sequence of solutions for Liouville type equations involving Dirac measures with "collapsing" poles. We consider the case where blow-up occurs exactly at a point where the poles coalesce. After proving that a…

Analysis of PDEs · Mathematics 2022-07-01 Gabriella Tarantello

For Liouville equation with quantized singular sources, the non-simple blowup phenomenon has been a major difficulty for years. It was conjectured by the first two authors that the non-simple blowup phenomenon does not occur if the equation…

Analysis of PDEs · Mathematics 2025-01-14 Teresa D'Aprile , Juncheng Wei , Lei Zhang

In several fields of Physics, Chemistry and Ecology, some models are described by Liouville systems. In this article we first prove a uniqueness result for a Liouville system in $\mathbb R^2$. Then we establish an uniform estimate for…

Analysis of PDEs · Mathematics 2015-05-13 Chang-shou Lin , Lei Zhang

For singular mean field equations defined on a compact Riemann surface, we prove the uniqueness of bubbling solutions as far as blowup points are either regular points or non-quantized singular sources. In particular the uniqueness result…

Analysis of PDEs · Mathematics 2025-01-06 Daniele Bartolucci , Wen Yang , Lei Zhang

In a recent series of important works \cite{wei-zhang-1,wei-zhang-2,wei-zhang-3}, Wei-Zhang proved several vanishing theorems for non-simple blow-up solutions of singular Liouville equations. It is well known that a non-simple blow-up…

Analysis of PDEs · Mathematics 2023-05-15 Lina Wu

We consider generic 2 x 2 singular Liouville systems on a smooth bounded domain in the plane having some symmetry with respect to the origin. We construct a family of solutions to which blow-up at the origin and whose local mass at the…

Analysis of PDEs · Mathematics 2016-10-04 Luca Battaglia , Angela Pistoia

Liouville systems on Riemann surfaces are instrumental in modeling species growth and particle dynamics in biology and physics. Previously, we established a priori estimates for parameters across regions defined by critical hyper-surfaces.…

Analysis of PDEs · Mathematics 2025-04-07 Yi Gu , Lei Zhang

For singular mean field equations defined on a compact Riemann surface, we prove the uniqueness of bubbling solutions if some blowup points coincide with bubbling sources. If the strength of the bubbling sources at blowup points are not…

Analysis of PDEs · Mathematics 2020-06-30 Lina Wu , Lei Zhang

In this paper we perform a blow-up and quantization analysis of the fractional Liouville equation in dimension $1$. More precisely, given a sequence $u_k :\mathbb{R} \to \mathbb{R}$ of solutions to \begin{equation} (-\Delta)^\frac{1}{2} u_k…

Differential Geometry · Mathematics 2016-07-14 Francesca Da Lio , Luca Martinazzi

In this paper we consider bubbling solutions to the general Liouville system: \label{abeq1} \Delta_g u_i^k+\sum_{j=1}^n a_{ij}\rho_j^k(\frac{h_j e^{u_j^k}}{\int h_j e^{u_j^k}}-1)=0\quad\text{in}M, i=1,...,n (n\ge 2) where $(M,g)$ is a…

Analysis of PDEs · Mathematics 2013-02-06 Chang-shou Lin , Lei Zhang

We are concerned with the existence of blowing-up solutions to the following boundary value problem $$-\Delta u= \la a(x) e^u-4\pi N \delta_0\;\hbox{ in } \Omega,\quad u=0 \;\hbox{ on }\partial \Omega,$$ where $\Omega$ is a smooth and…

Analysis of PDEs · Mathematics 2021-04-01 Teresa D'Aprile

In this paper, we develop the blow-up analysis and establish the energy quantization for solutions to super-Liouville type equations on Riemann surfaces with conical singularities at the boundary. In other problems in geometric analysis,…

Differential Geometry · Mathematics 2019-08-27 Jürgen Jost , Chunqin Zhou , Miaomiao Zhu

We study the existence of solutions with multiple concentration to the following boundary value problem $$-\Delta u=\e^2 e^u-4\pi \sum_{p\in Z}\alpha_p \delta_{p}\;\hbox{in} \Omega,\quad u=0 \;\hbox{on}\partial \Omega,$$ where $\Omega$ is a…

Analysis of PDEs · Mathematics 2012-10-24 Teresa D'Aprile

In dimension n isolated singularities -- at a finite point or at infinity -- for solutions of finite total mass to the n-Liouville equation are of logarithmic type. As a consequence, we simplify the classification argument in…

Analysis of PDEs · Mathematics 2021-05-11 Pierpaolo Esposito

The pioneering work of Brezis-Merle [7], Li-Shafrir [27], Li [26] and Bartolucci-Tarantello [4] showed that any sequence of blow up solutions for (singular) mean field equations of Liouville type must exhibit a "mass concentration"…

Analysis of PDEs · Mathematics 2017-02-28 Youngae Lee , Chang-shou Lin , Gabriella Tarantello , Wen Yang

We are concerned with the existence of blowing-up solutions to the following boundary value problem $$-\Delta u= \lambda V(x) e^u-4\pi N \delta_0\;\mbox{ in } B_1,\quad u=0 \;\mbox{ on }\partial B_1,$$ where $B_1$ is the unit ball in…

Analysis of PDEs · Mathematics 2023-08-01 Teresa D'Aprile , Juncheng Wei , Lei Zhang
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