activity
20232026
collaborators

5 papers

math.AP2026

Well-posedness of a Hele-Shaw problem in general dimensions

Olga Turanova, Yuming Paul Zhang

We investigate a Hele-Shaw type free boundary problem in general spatial dimension. We establish a comparison principle and well-posedness for the problem using a notion of viscosi…

math.AP2025

Chemotaxis Models with Nonlinear/Porous Medium Diffusion, Consumption, and Logistic source on : I. Global Solvability and Boundedness

Zulaihat Hassan, Wenxian Shen, Yuming Paul Zhang

This series of papers is concerned with the global solvability, boundedness, regularity, and uniqueness of weak solutions to the following parabolic-parabolic chemotaxis system wit…

math.AP2025

A Hele-Shaw problem with interior and free boundary oscillation: well-posedness and homogenization

Olga Turanova, Yuming Paul Zhang

We investigate a Hele-Shaw type free boundary problem in one spatial dimension, where heterogeneities appear both on the free boundary and within the interior of the positivity set…

math.AP2024

The spreading of global solutions of chemotaxis systems with logistic source and consumption on

Zulaihat Hassan, Wenxian Shen, Yuming Paul Zhang

This paper investigates the spreading properties of globally defined bounded positive solutions of a chemotaxis system featuring a logistic source and consumption: \[ \left\{ \begi…

math.AP2023

Global existence of classical solutions of chemotaxis systems with logistic source and consumption or linear signal production on

Zulaihat Hassan, Wenxian Shen, Yuming Paul Zhang

While much literature on chemotaxis systems focuses on bounded domains, this paper emphasizes the global existence of classical solutions for three primary chemotaxis systems with…