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Non simple blow-up phenomena for the singular Liouville equation. D'Aprile, Teresa
Description
Let $\Omega$ be a smooth bounded domain in $\mathbb{R}^2$ containing the origin. We are concerned with the following Liouville equation with Dirac mass measure $$ \left\{ \begin{aligned}&- \Delta u = \lambda e^u-4\pi N_\lambda {\mathcal \delta}_0& \hbox{ in }& \Omega,\\ & \ u=0 & \hbox{ on }& \partial \Omega. \end{aligned} \right. $$ Here $\lambda$ is a positive small parameter, ${ \mathbb \delta}_0$ denotes Dirac mass supported at $0$ and $N_\lambda $ is a positive number close to an integer $N$ ($N\geq 2$) from the right side. We assume that $\Omega$ is $(N+1)$-symmetric and the regular part of the Green's function satisfies a nondegeneracy condition (both assumptions are verified if $\Omega$ is the unit ball) and we provide an example of non-simple blow-up as $\lambda \to 0^+$ exhibiting a non-symmetric scenario. More precisely we construct a family of solutions split in a combination of $N+1$ bubbles concentrating at 0 arranged on a tiny polygonal configuration centered at $0$. This is a joint work with Juncheng Wei (University of British Columbia).
Item Metadata
Title |
Non simple blow-up phenomena for the singular Liouville equation.
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Creator | |
Publisher |
Banff International Research Station for Mathematical Innovation and Discovery
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Date Issued |
2019-05-06T09:39
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Description |
Let $\Omega$ be a smooth bounded domain in $\mathbb{R}^2$ containing the origin. We are concerned with the following Liouville equation with Dirac mass measure
$$ \left\{
\begin{aligned}&- \Delta u = \lambda e^u-4\pi N_\lambda {\mathcal \delta}_0& \hbox{ in }& \Omega,\\
& \ u=0 & \hbox{ on }& \partial \Omega.
\end{aligned}
\right. $$
Here $\lambda$ is a positive small parameter, ${ \mathbb \delta}_0$ denotes Dirac mass supported at $0$ and $N_\lambda $ is a positive number close to an integer $N$ ($N\geq 2$) from the right side.
We assume that $\Omega$ is $(N+1)$-symmetric and the regular part of the Green's function satisfies a nondegeneracy condition (both assumptions are verified if $\Omega$ is the unit ball) and we provide an example of non-simple blow-up as $\lambda \to 0^+$ exhibiting a non-symmetric scenario. More precisely we construct a family of solutions split in a combination of $N+1$ bubbles concentrating at 0 arranged on a tiny polygonal configuration centered at $0$.
This is a joint work with Juncheng Wei (University of British Columbia).
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Extent |
32.0 minutes
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Subject | |
Type | |
File Format |
video/mp4
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Language |
eng
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Notes |
Author affiliation: Università di Roma Tor Vergata
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Series | |
Date Available |
2019-11-03
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Provider |
Vancouver : University of British Columbia Library
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Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
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DOI |
10.14288/1.0384899
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URI | |
Affiliation | |
Peer Review Status |
Unreviewed
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Scholarly Level |
Faculty
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Rights URI | |
Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International