activity
20172026
most citedThe stationary horizon and semi-infinite geodesics in the directed landscape

13 citations · 28 across the 9 of their papers we have counts for

collaborators

11 papers

math.PR2026

Classification of the eternal solutions and multiple coalescing shocks in the KPZ fixed point

Sudeshna Bhattacharjee, Ofer Busani, Evan Sorensen

We give a complete classification of the eternal solutions for the KPZ fixed point. Each of these is a (possibly infinite) max-plus convolution of the known eternal solutions, call…

math.PR2023

Scaling limit of multi-type invariant measures via the directed landscape

Ofer Busani, Timo Seppäläinen, Evan Sorensen

This paper studies the large scale limits of multi-type invariant distributions and Busemann functions of planar stochastic growth models in the Kardar-Parisi-Zhang (KPZ) class. We…

math.PR2023★ 3 cited

Jointly invariant measures for the Kardar-Parisi-Zhang Equation

Sean Groathouse, Firas Rassoul-Agha, Timo Seppäläinen +1

We give an explicit description of the jointly invariant measures for the KPZ equation. These are couplings of Brownian motions with drift, and can be extended to a process defined…

math.PR2023★ 1 cited

The stationary horizon as the central multi-type invariant measure in the KPZ universality class

Evan Sorensen

The Kardar-Parisi-Zhang (KPZ) universality class describes a large class of 2-dimensional models of random growth, which exhibit universal scaling exponents and limiting statistics…

math.PR2022

Scaling limit of the TASEP speed process

Ofer Busani, Timo Seppäläinen, Evan Sorensen

We show that the multi-type stationary distribution of the totally asymmetric simple exclusion process (TASEP) scales to a nontrivial limit around the Bernoulli measure of density…

math.PR2022★ 13 cited

The stationary horizon and semi-infinite geodesics in the directed landscape

Ofer Busani, Timo Seppäläinen, Evan Sorensen

The stationary horizon (SH) is a stochastic process of coupled Brownian motions indexed by their real-valued drifts. It was first introduced by the first author as the diffusive sc…

math.PR2021★ 11 cited

Global structure of semi-infinite geodesics and competition interfaces in Brownian last-passage percolation

Timo Seppäläinen, Evan Sorensen

In Brownian last-passage percolation (BLPP), the Busemann functions are indexed by two points $\mathbf x,\mathbf y \in \mathbb Z \times \mathbb…

math.PR2021

Busemann process and semi-infinite geodesics in Brownian last-passage percolation

Timo Seppäläinen, Evan Sorensen

We prove the existence of semi-infinite geodesics for Brownian last-passage percolation (BLPP). Specifically, on a single event of probability one, there exist semi-infinite geodes…

math.CV2019

Interlacing Properties of Coefficient Polynomials in Differential Operator Representations of Real-Root Preserving Linear Transformations

David A. Cardon, Evan L. Sorensen, Jason C. White

We study linear transformations of the form where is a real orthogonal polynomial system. Such transformatio…

math.CV2018

On Zero-Sector Reducing Operators

David A. Cardon, Tamás Forgács, Andrzej Piotrowski +2

We prove a Jensen-disc type theorem for polynomials having all their zeros in a sector of the complex plane. This result is then used to prove the existence of…

math.CV2017

Real-Root Preserving Differential Operator Representations of Orthogonal Polynomials

David A. Cardon, Evan L. Sorensen, Jason C. White

In this paper, we study linear transformations of the form where is an orthogonal polynomial system. Of particular interest is understanding when these…