Adela YiYu Zhang

activity

20242026

collaborators

3 papers

math.AT2026

Universal property of graph cobordisms

Andrea Bianchi, Adela Yiyu Zhang

We exhibit the symmetric monoidal $\infty$ -category $GrCob$ of graph cobordisms between spaces as a full $\infty$ -subcategory of the $\infty$ -category $\mathrm{Psh}(\mathr…

math.AT2025

Open 2D TFTs admit initial open-closed extensions

Shaul Barkan, Jan Steinebrunner, Adela YiYu Zhang

We show that any open 2-dimensional topological field theory valued in a symmetric monoidal $\infty$ -category (with suitable colimits) extends canonically to an open-closed field t…

math.AT2024

Bounding the $K (p - 1)$ -local exotic Picard group at $p > 3$

Irina Bobkova, Andrea Lachmann, Ang Li +3

In this paper, we bound the descent filtration of the exotic Picard group $I^º_{n}$ , for a prime number p>3 and n=p-1. Our method involves a detailed comparison of the Picard spectral…

Universal property of graph cobordisms

Open 2D TFTs admit initial open-closed extensions

Bounding the K(p−1)-local exotic Picard group at p>3

Bounding the $K (p - 1)$ -local exotic Picard group at $p > 3$