May 2024 Hydrodynamics of the t-PNG model via a colored t-PNG model
Hindy Drillick, Yier Lin
Author Affiliations +
Ann. Inst. H. Poincaré Probab. Statist. 60(2): 1215-1245 (May 2024). DOI: 10.1214/22-AIHP1343

Abstract

In this paper, we prove the hydrodynamic limit of the t-PNG model using soft techniques. One key element of the proof is the construction of a colored version of the t-PNG model, which allows us to apply the superadditive ergodic theorem and obtain the hydrodynamic limit, albeit without identifying the limiting constant. We then find this constant by proving a law of large numbers for the α-points. Along the way, we construct the stationary t-PNG model and prove a version of Burke’s theorem for it.

Dans cet article, nous prouvons la limite hydrodynamique du modèle t-PNG en utilisant des méthodes peu techniques. Un élément clé de la preuve est la construction d’une version colorée du modèle t-PNG, qui nous permet d’appliquer le théorème ergodique sur-additif et d’obtenir la limite hydrodynamique, mais sans identifier la constante limite. Nous trouvons ensuite cette constante en démontrant une loi des grands nombres pour les α-points. Ce faisant, nous construisons le modèle stationnaire t-PNG et prouvons une version du théorème de Burke pour celui-ci.

Funding Statement

The authors acknowledge support from NSF DMS-1928930 during their participation in the program “Universality and Integrability in Random Matrix Theory and Interacting Particle Systems” hosted by the Mathematical Sciences Research Institute in Berkeley, California during the Fall semester of 2021.
Hindy Drillick was supported by the National Science Foundation Graduate Research Fellowship under Grant No. DGE-1644869.

Acknowledgements

The authors thank Amol Aggarwal, Ivan Corwin, Pablo Ferrari, and Firas Rassoul-Agha for the helpful discussion. We thank the anonymous referees for their helpful comments.

Citation

Download Citation

Hindy Drillick. Yier Lin. "Hydrodynamics of the t-PNG model via a colored t-PNG model." Ann. Inst. H. Poincaré Probab. Statist. 60 (2) 1215 - 1245, May 2024. https://doi.org/10.1214/22-AIHP1343

Information

Received: 4 May 2022; Revised: 17 October 2022; Accepted: 3 November 2022; Published: May 2024
First available in Project Euclid: 11 June 2024

Digital Object Identifier: 10.1214/22-AIHP1343

Subjects:
Primary: 60F15
Secondary: 60J25

Keywords: Hammersley’s process , interacting particle systems , polynuclear growth model

Rights: Copyright © 2024 Association des Publications de l’Institut Henri Poincaré

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Vol.60 • No. 2 • May 2024
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