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Discrete Laplace and transition operators over non-Archimedean ordered fields
Anna Muranova · 2022-07-28 · via math.PR updates on arXiv.org

We investigate properties of spectrum of normalized Laplacian $\mathcal L$ for finite graphs over non-Archimedean ordered fields. We prove a Cheeger's inequality for first non-zero eigenvalue. Then we describe properties of the operator $\mathcal P=I-\mathcal L$, which is a generalization of transition operator. We show that Cheeger estimate $α_1\preceq \sqrt{1-h^2}$ for the second largest eigenvalue of $\mathcal P$ is crucial for investigation of the convergence of analogue of random walk to equilibrium over a non-Archimedean ordered fields. We consider examples over the Levi-Civita field.

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