# TAT_Revisit::MoveOn

some preparation here.

https://zym8903.wordpress.com/2012/03/13/tat_revisitonstart/

1. The problem is I cannot use $\sup\sqrt{2\mu+\lambda}$ all the time.

2. In Isakov’s theorem, I think there must some modification of $\theta$. It cannot be a constant. Otherwise our work will be in vain.

[Claim] I found the problem, Tataru’s estimate assumes that both of P wave and S wave vanishes outside the domain. That is the point.

[Claim] Tataru is right, It should both be zero outside the domain. I have no idea right now.

$\Box$