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arXiv · 2608.22911

A priori bounds for the generalized parabolic Anderson model in the full subcritical regime

Salvador Esquivel·Felix Schwarzfischer
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Abstract

We show a priori bounds for the generalized Parabolic Anderson Model $(\partial_t - \Delta)u = \sigma(u) \diamond \xi$ in finite volume in the full subcritical regime. The approach is based on the observation that, for constant initial data, the time interval over which the solution remains close to its initial condition can be chosen uniformly in the value of the initial condition. A comparison principle is then used to extend this estimate to general bounded initial data.

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Salvador Esquivel, Felix Schwarzfischer. 2026-08-24. A priori bounds for the generalized parabolic Anderson model in the full subcritical regime. https://arxiv.org/abs/2608.22911

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