Finite time blowup for Klein-Gordon-Schrodinger system

被引:8
|
作者
Shi, Qihong [1 ]
Zhang, Xiao-Bing [1 ]
Wang, Changyou [2 ]
Wang, Shu [3 ]
机构
[1] Lanzhou Univ Technol, Sch Math, Lanzhou 730050, Gansu, Peoples R China
[2] Chengdu Univ Informat Technol, Coll Appl Math, Chengdu 610103, Sichuan, Peoples R China
[3] Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China
基金
中国国家自然科学基金;
关键词
blowup results; KGS system; negative energy; virial identity; GLOBAL-SOLUTIONS; UP SOLUTIONS; EQUATION; EXISTENCE; FIELD; MODEL;
D O I
10.1002/mma.5621
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We investigate the blowup solutions to the Klein-Gordon-Schrodinger (KGS) system with power nonlinearity in spatial dimensions RN (N >= 2). Relying on a Lyapunov functional, we establish a perturbed virial-type identity and prove the existence of blowup solutions for the system with a negative energy and small mass. Moreover, we obtain a new finite-time blowup result of solutions to KGS system in the energy space by constructing a differential inequality.
引用
收藏
页码:3929 / 3941
页数:13
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