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19952026
most citedInverse Problem for a Curved Quantum Guide

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math.AP2025

Swarming by curvature control in arbitrary dimension

Pierre Degond, Antoine Diez, Amic Frouvelle

We consider an interacting particle system proposed in the literature to model fish behavior. In this model, the agents move at constant speed and control the curvature of their tr…

math.AP2025

Spreading Properties of a City-Road Reaction-Diffusion Model on One-Dimensional Lattice

Grégory Faye, Jean-Michel Roquejoffre, Min Zhao

We propose and study a new model to describe biological invasions constrained on infinite homogeneous one dimensional metric graphs. Our model consists of an infinite PDE-ODE syste…

math.AP2025

Concentration in selection-mutation models: error estimates and asymptotic expansions

Caroline Guinet, Sepideh Mirrahimi, Jean-Michel Roquejoffre

In this paper, we study an integro-differential equation which describes the evolutionary dynamics of a population structured by a phenotypic trait. This population undergoes asexu…

math.AP2025

Observability estimates for the Schrödinger equation on the equilateral triangle

Paul Alphonse, David Lafontaine

We prove observability estimates for the Schrödinger equation posed on the equilateral triangle in the plane, under both Neumann and Dirichlet boundary conditions. No geometric con…

math.AP2025

Global existence and decay of small solutions in a viscous half Klein-Gordon equation

Louis Garénaux, Björn de Rijk

We establish global existence and decay of solutions of a viscous half Klein-Gordon equation with a quadratic nonlinearity considering initial data, whose Fourier transform is smal…

math.AP2025

Numerical analysis of the homogeneous Landau equation: approximation, error estimates and simulation

Francis Filbet, Yanzhi Gui, Ling-Bing He

We construct a numerical solution to the spatially homogeneous Landau equation with Coulomb potential on a domain with N retained Fourier modes. By deriving an explicit error…