7–11 Sept 2026
Humboldt Universität zu Berlin
Europe/Berlin timezone

Convergence of finite elements for a bulk-surface coupled free boundary problem

7 Sept 2026, 14:30
30m
DOR24/Floor 1-Room 101 - Lecture Hall (HU (Hegelplatz))

DOR24/Floor 1-Room 101 - Lecture Hall

HU (Hegelplatz)

HU Berlin Dorotheenstrasse 24 (Hegelplatz) 10117 Berlin
178
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Thin Material Structures Thin Material Structures

Speaker

Yifei Li (Tuebingen University)

Description

In this talk, we present a numerical analysis of the Eyles-King-Styles tumor growth model, a free boundary problem coupling a Poisson equation in the bulk \Omega with a forced mean curvature flow on its boundary \Gamma. Unlike existing evolving surface analyses based on integer-order Sobolev spaces, this bulk-surface coupling requires H^{1/2}-order regularity on \Gamma. We establish a fractional Sobolev framework that admit a rigorous convergence analysis for continuous finite elements of polynomial degree at least three.

Author

Yifei Li (Tuebingen University)

Presentation materials

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