Abstract
We construct p-adic Euclidean random fields \(\varvec{\Phi }\) over \(\mathbb {Q}_{p}^{N}\), 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 \(\varvec{\Phi }\).
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The author wishes to thank to Sergii Torba and the anonymous referees for many useful comments and discussions, which led to an improvement of this work.
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Communicated by Michael Ruzhansky.
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Zúñiga-Galindo, W.A. Non-Archimedean White Noise, Pseudodifferential Stochastic Equations, and Massive Euclidean Fields. J Fourier Anal Appl 23, 288–323 (2017). https://doi.org/10.1007/s00041-016-9470-1
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DOI: https://doi.org/10.1007/s00041-016-9470-1
Keywords
- Stochastic equations
- Quantum field theories
- Random fields
- White noise calculus
- Lévy noise
- p-Adic numbers
- Non-Archimedean functional analysis