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In this paper, we study the degree counting formula of the rank two Toda system with simple singular source when $\rho_1\in(0,4\pi)\cup(4\pi,8\pi)$ and $\rho_2\notin 4\pi\mathbb{N}.$ The key step is to derive the degree formula of the…

Analysis of PDEs · Mathematics 2017-07-25 Youngae Lee , Chang-shou Lin , Wen Yang , Lei Zhang

For regular $SU(3)$ Toda systems defined on Riemann surface, we initiate the study of bubbling solutions if parameters $(\rho_1^k,\rho_2^k)$ are both tending to critical positions: $(\rho_1^k,\rho_2^k)\to (4\pi, 4\pi N)$ or $(4\pi N, 4\pi)$…

Analysis of PDEs · Mathematics 2019-12-30 Lina Wu , Lei Zhang

We consider the following class of equations with exponential nonlinearities on a compact surface $M$: $$ - \Delta u = \rho_1 \left( \frac{h_1 \,e^{u}}{\int_M h_1 \,e^{u} } - \frac{1}{|M|} \right) - \rho_2 \left( \frac{h_2 \,e^{-u}}{\int_M…

Analysis of PDEs · Mathematics 2018-04-11 Aleks Jevnikar , Juncheng Wei , Wen Yang

In this paper, we continue to consider the 2-dimensional (open) Toda system (Toda lattice) for $SU(N+1)$. We give a much more precise bubbling behavior of solutions and study its existence in some critical cases

Analysis of PDEs · Mathematics 2016-08-16 Jürgen Jost , Chang-Shou Lin , Guofang Wang

In this article we study bubbling solutions of regular $SU(3)$ Toda systems defined on a Riemann surface. There are two major difficulties corresponding to the profile of bubbling solutions: partial blowup phenomenon and bubble…

Analysis of PDEs · Mathematics 2022-06-17 Juncheng Wei , Lina Wu , Lei Zhang

It is well known that the study of $SU(n+1)$ Toda systems is important not only to Chern-Simons models in Physics, but also to the understanding of holomorphic curves, harmonic sequences or harmonic maps from Riemann surfaces to $\mathbb…

Analysis of PDEs · Mathematics 2014-10-29 Changshou Lin , Juncheng Wei , Lei Zhang

In this paper we consider the so-called Toda System in planar domains under Dirichlet boundary condition. We show the existence of continua of solutions for which one component is blowing up at a certain number of points. The proofs use…

Analysis of PDEs · Mathematics 2014-08-01 Teresa D'Aprile , Angela Pistoia , David Ruiz

For singular $SU(3)$ Toda systems, we prove that the limit of energy concentration is a finite set. In addition, for fully bubbling solutions we use Pohozaev identity to prove a uniform estimate. Our results extend previous results of…

Analysis of PDEs · Mathematics 2016-01-20 Changshou Lin , Juncheng Wei , Lei Zhang

In this article we prove that for locally defined singular SU(n+1) Toda systems in R^2, the profile of fully bubbling solutions near the singular source can be accurately approximated by global solutions. The main ingredients of our new…

Analysis of PDEs · Mathematics 2015-05-27 Chang-Shou Lin , Juncheng Wei , Lei Zhang

This work studies the partial blow-up phenomena for the $SU(3)$ Toda system on compact Riemann surfaces with smooth boundary. We consider the following coupled Liouville system with Neumann boundary conditions: $$ -\Delta_g u_1 =…

Analysis of PDEs · Mathematics 2024-09-02 Zhengni Hu , Mohameden Ahmedou , Thomas Bartsch

We consider the singular $SU(3)$ Toda system with multiple singular sources \begin{align*} \left\{\begin{array}{ll}-\Delta w_1=2e^{2w_1}-e^{w_2}+2\pi\sum_{\ell=1}^m\beta_{1,\ell}\delta_{P_{\ell}}\quad\text{in }\mathbb{R}^2\\…

Analysis of PDEs · Mathematics 2020-05-06 Ali Hyder , Chang-Shou Lin , Juncheng Wei

In this paper, we study the blow-up analysis of an affine Toda system corresponding to minimal surfaces into ${\mathbb S}^4$ [19]. This system is an integrable system which is a natural generalization of sinh-Gordon equation [18]. By…

Analysis of PDEs · Mathematics 2020-11-04 Lei Liu , Guofang Wang

We introduce the super-Toda system on Riemann surfaces and study the blow-up analysis for a sequence of solutions to the super-Toda system on a closed Riemann surface with uniformly bounded energy. In particular, we show the energy…

Differential Geometry · Mathematics 2017-09-05 Jürgen Jost , Chunqin Zhou , Miaomiao Zhu

We consider the so-called Toda system in a smooth planar domain under homogeneous Dirichlet boundary conditions. We prove the existence of a continuum of solutions for which both components blow-up at the same point. This blow-up behavior…

Analysis of PDEs · Mathematics 2014-11-14 Teresa D'Aprile , Angela Pistoia , David Ruiz

We consider the SU(3) Toda system on a compact surface. We give both existence and non-existence results under some conditions on the parameters. Existence results are obtained using variational methods, which involve a geometric inequality…

Analysis of PDEs · Mathematics 2016-01-29 Luca Battaglia , Andrea Malchiodi

This paper studies solutions to a singular $SU(3)$ Toda system with linear source terms on a compact Riemann surface $\Sigma$ with smooth boundaries $\partial\Sigma$. We establish the existence of solutions when the parameters are not…

Analysis of PDEs · Mathematics 2025-05-30 Zhengni Hu

In this note, we consider blow-up for solutions of the SU(3) Toda system on a compact surface \Sigma. In particular, we give a complete proof of the compactness result stated by Jost, Lin and Wang and we extend it to the case of…

Analysis of PDEs · Mathematics 2015-04-20 Luca Battaglia , Gabriele Mancini

We present the first computation of the thermodynamic properties of the complex su(3) Toda theory. This is possible thanks to a new string hypothesis, which involves bound states that are non self-conjugate solutions of the Bethe equations.…

High Energy Physics - Theory · Physics 2009-10-31 H. Saleur , B. Wehefritz-Kaufmann

We consider the $SU(n+1)$ Toda system $$(S_\lambda) \quad \left\{ \begin{aligned} & \Delta u_1 + 2\lambda e^{u_1} - \lambda e^{u_2}- \dots - \lambda e^{u_k} = 0\quad \hbox{in}\ \Omega,\\ & \Delta u_2 - \lambda e^{u_1} + 2\lambda e^{u_2} -…

Analysis of PDEs · Mathematics 2016-04-14 Monica Musso , Angela Pistoia , Juncheng Wei

We consider the following Toda system \Delta u_i + \D \sum_{j = 1}^n a_{ij}e^{u_j} = 4\pi\gamma_{i}\delta_{0} \text{in}\mathbb R^2, \int_{\mathbb R^2}e^{u_i} dx < \infty, \forall 1\leq i \leq n, where $\gamma_{i} > -1$, $\delta_0$ is Dirac…

Analysis of PDEs · Mathematics 2015-06-03 Chang-Shou Lin , Dong Ye , Juncheng Wei
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