Yujie Lin

collaborators

2 papers

math.GT2026

Homotopy Coherent Nielsen Realization Problem for Dehn Twists on K3-Type 4-Manifolds

Yujie Lin, Yi Sha

We study the homotopy coherent version of the Nielsen realization problem for smooth $4$ -manifolds. Given a finite subgroup $G \subset I ¨ _{0} (Diff (M))$ , this problem asks whe…

math.GT2025

A note on the boundary Dehn twist of $K 3$ surfaces

Yujie Lin

By the work of Baraglia-Konno and Kronheimer-Mrowka, the boundary Dehn twist on punctured $K 3$ surfaces is nontrivial in the smooth mapping class group relative to boundary. In thi…

Homotopy Coherent Nielsen Realization Problem for Dehn Twists on K3-Type 4-Manifolds

A note on the boundary Dehn twist of K3 surfaces

A note on the boundary Dehn twist of $K 3$ surfaces