抛物型Anderson模型和随机F-KPP方程的（非）有界转捩前沿
(Un-)bounded transition fronts for the parabolic Anderson model and the randomized F-KPP equation
摘要：
研究了随机Fisher-KPP方程及其线性化抛物型Anderson模型解的前沿的一致有界性。已经知道，对于标准的（即确定性的）Fisher-KPP方程，以及对于具有所谓的点火型非线性的随机化Fisher-KPP方程的特殊情况，具有一致有界的（在时间上）过渡前沿。在这里，我们表明，具有一致有界的过渡前的一般随机Fisher-KPP方程的这种属性不成立。然而，我们建立了这个属性确实适用于抛物安德森模型。
英文摘要：
We investigate the uniform boundedness of the fronts of the solutions to the randomized Fisher-KPP equation and to its linearization, the parabolic Anderson model. It has been known that for the standard (i.e. deterministic) Fisher-KPP equation, as well as for the special case of a randomized Fisher-KPP equation with so-called ignition type nonlinearity, one has a uniformly bounded (in time) transition front. Here, we show that this property of having a uniformly bounded transition front fails to hold for the general randomized Fisher-KPP equation. Nevertheless, we establish that this property does hold true for the parabolic Anderson model.
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