节点文献
Sharp Threshold of Global Existence for the Klein-Gordon Equations with Critical Nonlinearity
【摘要】 <正>In this paper,we present a cross-constrained variational method to study the Cauchy problem of the nonlinear Klein-Gordon equations with critical nonlinearity in two space dimensions.By constructing a type of cross-constrained variational problem and establishing so-called cross-invariant manifolds of the evolution flow,we establish a sharp threshold of global existence and blowup of it.Furthermore,we answer the question: How small are the initial data if the solution exists globally.
【Abstract】 In this paper,we present a cross-constrained variational method to study the Cauchy problem of the nonlinear Klein-Gordon equations with critical nonlinearity in two space dimensions.By constructing a type of cross-constrained variational problem and establishing so-called cross-invariant manifolds of the evolution flow,we establish a sharp threshold of global existence and blowup of it.Furthermore,we answer the question: How small are the initial data if the solution exists globally.
【Key words】 Sharp threshold; Klein-Gordon equation; cross-constrained variational problem; global existence; blowup;
- 【文献出处】 Acta Mathematicae Applicatae Sinica ,应用数学学报(英文版) , 编辑部邮箱 ,2009年02期
- 【分类号】O175.29
- 【被引频次】2
- 【下载频次】35