Non-Archimedean White Noise, Pseudodifferential Stochastic Equations, and Massive Euclidean Fields

We construct p-adic Euclidean random fields Φ over Q_{p}^{N}, for arbitrary N, these fields are solutions of p-adic stochastic pseudodifferential equations. From a mathematical perspective, the Euclidean fields are generalized stochastic processes parametrized by functions belonging to a nuclear countably Hilbert space, these spaces are introduced in this article, in addition, the Euclidean fields are invariant under the action of certain group of transformations. We also study the Schwinger functions of Φ.

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