节点文献
球形脉冲波穿过聚焦点的分析
Anaylsis of Sphercial Pulses Crossing the Focal Point
【摘要】 利用渐近分析的方法,讨论球型脉冲波在非线性焦散情形下,脉冲波穿过焦点时的性态.得到在时间趋于负无穷的初始条件下,脉冲波穿过焦点时,方程的非线性项可以忽略.
【Abstract】 With the aid of asymptotic analysis,this paper discusses the property of spherical pulses crossing the focal point,under the condition of nonlinear caustic.For the Cauchy problem with initial data taken at minus intinity,it shows that the nonlinear term could be negligible when the pulses cross the focal point.
【基金】 北京市教委科技基金(KM200710009012)
- 【文献出处】 数学的实践与认识 ,Mathematics in Practice and Theory , 编辑部邮箱 ,2009年19期
- 【分类号】O175.24
- 【下载频次】32