activity
20072025
most citedA conditional well-posedness result for the bidirectional Whitham equation

12 citations · 12 across the 9 of their papers we have counts for

collaborators

10 papers

physics.flu-dyn2025

Rediscovering shallow water equations from experimental data

Kjell S. Heinrich, Douglas S. Seth, Mats Ehrnstrom +1

New data-driven methods have advanced the discovery of governing equations from observations, enabling parsimonious models for complex systems. Here, we 'rediscover' a shallow-wate…

math.AP2023

A maximisation technique for solitary waves: the case of the nonlocally dispersive Whitham equation

Mathias Nikolai Arnesen, Mats Ehrnstrom, Atanas G. Stefanov

Recently, two different proofs for large and intermediate-size solitary waves of the nonlocally dispersive Whitham equation have been presented, using either global bifurcation the…

math.AP2022

A direct construction of a full family of Whitham solitary waves

Mats Ehrnström, Katerina Nik, Christoph Walker

Starting with the periodic waves earlier constructed for the gravity Whitham equation, we parameterise the solution curves through relative wave height, and use a limiting argument…

math.AP2019

Smooth stationary water waves with exponentially localized vorticity

Mats Ehrnström, Samuel Walsh, Chongchun Zeng

We study stationary capillary-gravity waves in a two-dimensional body of water that rests above a flat ocean bed and below vacuum. This system is described by the Euler equations w…

math.AP2017★ 12 cited

A conditional well-posedness result for the bidirectional Whitham equation

Mats Ehrnström, Long Pei, Yuexun Wang

We consider the initial-value problem for the bidirectional Whitham equation, a system which combines the full two-way dispersion relation from the incompressible Euler equations w…

math.AP2013

Steady-state fingering patterns for a periodic Muskat problem

Mats Ehrnstrom, Joachim Escher, Bogdan-Vasile Matioc

We study global bifurcation branches consisting of stationary solutions of the Muskat problem. It is proved that the steady-state fingering patterns blow up as the surface tension…