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For first passage percolation (FPP) on integer lattice with i.i.d. passage time distributions, in order to show existence of semi-infinite geodesics along a fixed direction, one requires unproven assumptions on the limiting shape. We…

Probability · Mathematics 2017-07-12 Kumarjit Saha

For the exactly solvable model of exponential last passage percolation on $\mathbb{Z}^2$, consider the geodesic $\Gamma_n$ joining $(0,0)$ and $(n,n)$ for large $n$. It is well known that the transversal fluctuation of $\Gamma_n$ around the…

Probability · Mathematics 2021-01-06 Riddhipratim Basu , Manan Bhatia

For stationary first passage percolation in two dimensions, the existence and uniqueness of semi-infinite geodesics directed in particular directions or sectors has been considered by Damron and Hanson (Commun. Math. Phys., 2014), Ahlberg…

Probability · Mathematics 2018-08-01 Kenneth S. Alexander , Quentin Berger

We continue the study of infinite geodesics in planar first-passage percolation, pioneered by Newman in the mid 1990s. Building on more recent work of Hoffman, and Damron and Hanson, we develop an ergodic theory for infinite geodesics via…

Probability · Mathematics 2019-07-19 Daniel Ahlberg , Christopher Hoffman

We study the directed last-passage percolation model on the planar integer lattice with nearest-neighbor steps and general i.i.d. weights on the vertices, outside the class of exactly solvable models. In a previous paper we constructed…

Probability · Mathematics 2016-07-26 Nicos Georgiou , Firas Rassoul-Agha , Timo Seppäläinen

We study a random perturbation of the Euclidean plane, and show that it is unlikely that the distance-minimizing path between the two points can be extended into an infinite distance-minimizing path. More precisely, we study a large class…

Probability · Mathematics 2022-08-25 Daniel Ahlberg , Jack Hanson , Christopher Hoffman

We develop a new probabilistic method for deriving deviation estimates in directed planar polymer and percolation models. The key estimates are for exit points of geodesics as they cross transversal down-right boundaries. These bounds are…

Probability · Mathematics 2023-08-30 Elnur Emrah , Christopher Janjigian , Timo Seppäläinen

Geodesic distance, sometimes called shortest path length, has proven useful in a great variety of applications, such as information retrieval on networks including treelike networked models. Here, our goal is to analytically determine the…

Combinatorics · Mathematics 2020-10-29 Fei Ma , Ping Wang , Xudong Luo

For the directed landscape, the putative universal space-time scaling limit object in the (1+1) dimensional Kardar-Parisi-Zhang (KPZ) universality class, consider the geodesic tree -- the tree formed by the coalescing semi-infinite…

Probability · Mathematics 2025-04-18 Riddhipratim Basu , Manan Bhatia

For exactly solvable models of planar last passage percolation, it is known that geodesics of length $n$ exhibit transversal fluctuations at scale $n^{2/3}$ and matching (up to exponents) upper and lower bounds for the tail probabilities…

Probability · Mathematics 2023-11-02 Pranay Agarwal

In first-passage percolation (FPP), one places nonnegative random variables (weights) $(t_e)$ on the edges of a graph and studies the induced weighted graph metric. We consider FPP on $\mathbb{Z}^d$ for $d \geq 2$ and analyze the geometric…

Probability · Mathematics 2020-03-09 Gerandy Brito , Michael Damron , Jack Hanson

For exponential last passage percolation on the plane we analyse the probability that the point-to-line geodesic exhibits an atypically large transversal fluctuation at the endpoint as well as the probability that the point-to-point…

Probability · Mathematics 2025-02-11 Pranay Agarwal , Riddhipratim Basu

In last passage percolation models, the energy of a path is maximized over all directed paths with given endpoints in a random environment, and the maximizing paths are called geodesics. The geodesics and their energy can be scaled so that…

Probability · Mathematics 2018-04-24 Alan Hammond , Sourav Sarkar

In first-passage percolation, we assign i.i.d.~nonnegative weights $(t_e)$ to the nearest-neighbor edges of $\mathbb{Z}^d$ and study the induced pseudometric $T = T(x,y)$. In this paper, we focus on geodesics, or optimal paths for $T$, and…

Probability · Mathematics 2025-05-13 Michael Damron , Jack Hanson , Christopher Janjigian , Wai-Kit Lam , Xiao Shen

We investigate first-passage percolation on the lattice $\Z^d$ for dimensions $d \geq 2$. Each edge $e$ of the graph is assigned an independent copy of a non-negative random variable $\tau$. We only assume $\P[\tau=0]0$ is explicit) for the…

Probability · Mathematics 2024-07-26 Olivier Durieu , Jean-Baptiste Gouéré , Antonin Jacquet

The study of transversal fluctuations of the optimal path is a crucial aspect of the Kardar-Parisi-Zhang (KPZ) universality class. In this work, we establish the large deviation limit for the midpoint transversal fluctuations in a general…

Probability · Mathematics 2025-02-04 Tom Alberts , Riddhipratim Basu , Sean Groathouse , Xiao Shen

Bi-infinite geodesics are fundamental objects of interest in planar first passage percolation. A longstanding conjecture states that under mild conditions there are almost surely no bigeodesics, however the result has not been proved in any…

Probability · Mathematics 2021-02-09 Riddhipratim Basu , Christopher Hoffman , Allan Sly

We consider first-passage percolation with i.i.d. non-negative weights coming from some continuous distribution under a moment condition. We review recent results in the study of geodesics in first-passage percolation and study their…

Probability · Mathematics 2020-05-22 Daniel Ahlberg

We consider a wide class of ergodic first passage percolation processes on Z^2 and prove that there exist at least four one-sided geodesics a.s. We also show that coexistence is possible with positive probability in a four color…

Probability · Mathematics 2007-11-19 Christopher Hoffman

We study first-passage percolation through related optimization problems over paths of restricted length. The path length variable is in duality with a shift of the weights. This puts into a convex duality framework old observations about…

Probability · Mathematics 2023-02-21 Arjun Krishnan , Firas Rassoul-Agha , Timo Seppäläinen