2 problems

Consider equation … with sufficiently large energy should blow up in finite time, in the sense that $w_{rr}(t,0)$ diverges as $t\nearrow T$ for some $T>0$. More precisely, there sh…

Consider equation … corresponding to sufficiently large initial data should blow up in finite time, in the sense that $w_{rr}(t,0)$ diverges as $t\nearrow T$ for some $T>0$, and th…