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Autori principali: Magra, Adel, van der Meulen, Frank, van der Vaart, Aad
Natura: Preprint
Pubblicazione: 2026
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Accesso online:https://arxiv.org/abs/2602.00889
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Sommario:
  • We consider the heat equation with absorption in a bounded domain of $\mathbb{R}^d$, where both the scalar diffusivity and the absorption function are unknown. We investigate a Bayesian approach for recovering the diffusivity from a noisy observation of the solution to the PDE over the domain. Given a Gaussian process prior on the absorption function, we derive a Bernstein-von Mises theorem for the marginal posterior distribution of the diffusivity under assumptions on the prior and on smoothness properties of the absorption.