摘要
It is known that for 1【p【+∞, n=2 or 1【p【（n+2）/（n-2）, n≥3, the elliptic problemhas a unique solution （x） which is radially symmetric and satisfies ’（0）=0, ’（r）【0, （x）～Me<sup>-α|x|<sup>2</sup></sup> as |x|→∞. Let u（x, t） be the solution （positive） ofIn Ref. [1| it has been proved that if λ】1, then u（x, t） blows up in finite time. We de-
基金
Project supported by the National Natural Science Foundation of China.
