ON MASS CONCENTRATION FOR THE CRITICAL GENERALIZED KORTEWEG-DE VRIES EQUATION

被引:4
|
作者
Pigott, B. [1 ]
机构
[1] Wake Forest Univ, Dept Math, Winston Salem, NC 27109 USA
关键词
Korteweg-de Vries (KdV) equation; critical norm; mass concentration; blow-up; NONLINEAR SCHRODINGER-EQUATION; BLOW-UP SOLUTIONS; WELL-POSEDNESS; KDV; DYNAMICS;
D O I
10.1017/S001309151500019X
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We show that blow-up solutions of the critical generalized Korteweg-de Vries equation in H-1(R) concentrate at least the mass of the ground state at the blow-up time. The I-method is used to prove a slightly weaker result in H-s(R) with 16/17 < s < 1. Under an assumption on the precise blow-up rate, we are able to use similar arguments to prove a more precise analogue of the H-1(R) concentration result over the same range of s.
引用
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页码:519 / 532
页数:14
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