some preparation here.
1. The problem is I cannot use all the time.
2. In Isakov’s theorem, I think there must some modification of . 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.