Acta mathematica scientia,Series A ›› 2026, Vol. 46 ›› Issue (2): 552-583.

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Sharp Estimates for Fully Bubbling Solutions of $G_2$ Toda System

Weiwei Ao(), Shanshan Lai*()   

  1. School of Mathematics and Statistics, Wuhan University, Wuhan 430072
  • Received:2025-12-16 Revised:2026-01-04 Online:2026-04-26 Published:2026-04-27
  • Contact: Shanshan Lai E-mail:wwao@whu.edu.cn;sslai_math@whu.edu.cn
  • Supported by:
    National Key Research and Development Program of Science and Technology(2022YFA1006800);National Natural Science Foundation of China Group Project(12221001);National Natural Science Foundation of China Key Project(12131017);National Natural Science Foundation China General Project(12471111)

Abstract:

This paper aims to sharp estimates of fully bubbling solutions of the Toda system with Cartan matrix $G_2$ in a compact Riemann surface, thereby providing a comprehensive understanding of the asymptotic behavior of such solutions. By using the non-degeneracy results of entire solutions, it proves that: 1) All fully bubbling solutions are approximated by a sequence of global solutions with precise error estimates; 2) the gradient of certain functions must approach zero with sufficient rate at the blow-up points, which uniquely determines their locations; 3) a corresponding $\partial_z^2$ condition exists.

Key words: $G_2$ Toda system, fully bubbling solutions, asymptotic behavior

CLC Number: 

  • O175.23
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