摘要 : Abstract We study pointwise convergence of the solution to the elastic wave equation to the initial data which lies in the Sobolev spaces. We prove that the solution converges along every line to the initial data almost everywhere... 展开 Abstract We study pointwise convergence of the solution to the elastic wave equation to the initial data which lies in the Sobolev spaces. We prove that the solution converges along every line to the initial data almost everywhere whenever the initial regularity is greater than one half. We show this is almost optimal. 收起