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Non-local Wasserstein Geometry, Gradient Flows, and Functional Inequalities for Stationary Point Processes

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arxiv 2504.12047 v1 pith:J5UAS2I7 submitted 2025-04-16 math.PR

classification math.PR
keywords specificstationarydistancenon-localpointprocessesconstructedentropy
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abstract

We construct a non-local Benamou-Brenier-type transport distance on the space of stationary point processes and analyse the induced geometry. We show that our metric is a specific variant of the transport distance recently constructed in [DSHS24]. As a consequence, we show that the Ornstein-Uhlenbeck semigroup is the gradient flow of the specific relative entropy w.r.t. the newly constructed distance. Furthermore, we show the existence of stationary geodesics, establish $1$-geodesic convexity of the specific relative entropy, and derive stationary analogues of functional inequalities such as a specific HWI inequality and a specific Talagrand inequality. One of the key technical contributions is the existence of solutions to the non-local continuity equation between arbitrary point processes.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Reversible birth-and-death dynamics in continuum: free-energy dissipation and attractor properties

    math.PR 2025-08 conditional novelty 8.0 of 10

    Any long-time limit of reversible area-interaction birth-death dynamics starting from a regular measure is shown to be a Gibbs point process, via relative-entropy dissipation.

  2. Gap metrics for stationary point processes and quantitative convexity of the free energy

    math.PR 2025-09 reject novelty 7.0 of 10

    The free energy of stationary point processes on R is shown to be strictly convex along a new gap-based Wasserstein metric, implying unique minimizers for logarithmic and Riesz interactions and exponential convergence...

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