数学物理学报 ›› 2026, Vol. 46 ›› Issue (2): 584-603.

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高初始能量下半线性角退化抛物方程组解的整体存在性与有限时间爆破——献给陈化教授 70 寿辰

徐辉阳*(), 李策策()   

  1. 河南科技大学数学与统计学院 河南洛阳 471023
  • 收稿日期:2025-12-16 修回日期:2026-02-05 出版日期:2026-04-26 发布日期:2026-04-27
  • 通讯作者: 徐辉阳 E-mail:xuhuiyang@haust.edu.cn;ceceli@haust.edu.cn
  • 作者简介:李策策, Email:ceceli@haust.edu.cn
  • 基金资助:
    国家自然科学基金(12101194);河南省自然科学基金(262300421837);河南省自然科学基金(242300420243)

Finite Time Blow-Up and Global Solutions Under High Energy Initial Data for Coupled Semilinear Corner-Degenerate Parabolic Systems

Huiyang Xu*(), Cece Li()   

  1. School of Mathematics and Statistics, Henan University of Science and Technology, Henan Luoyang 471023
  • Received:2025-12-16 Revised:2026-02-05 Online:2026-04-26 Published:2026-04-27
  • Contact: Huiyang Xu E-mail:xuhuiyang@haust.edu.cn;ceceli@haust.edu.cn
  • Supported by:
    NSFC(12101194);Natural Science Foundation of Henan Province(262300421837);Natural Science Foundation of Henan Province(242300420243)

摘要:

该文在角奇异流形上研究了带奇异位势项的耦合半线性抛物方程组的初边值问题.在高初始能量的条件下, 分别得到了一个充分条件来判别问题 (1.1) 解的整体存在性与有限时间爆破. 此外, 利用 Levine 的凹函数方法, 得到了任意初始能量下使得解有限时间爆破的充分条件以及相应的爆破时间估计.

关键词: 角退化抛物方程, 奇异位势, 高初始能量, 整体存在, 有限时间爆破

Abstract:

This paper investigates the initial-boundary value problem for a class of coupled semilinear degenerate parabolic equations with singular potential term on manifolds with corner singularities. Under the condition of high initial energy, a sufficient condition is established to describe the global existence and finite-time blow-up of solutions to problem (1.1), respectively. Furthermore, by employing Levine's concavity method, we prove that solutions blow up in finite time for any initial energy, and derive an upper bound for the blow-up time.

Key words: corner-degenerate parabolic equations, singular potentials, high initial energy, global existence, finite time blow-up

中图分类号: 

  • O175