Adela YiYu Zhang

activity

20222026

collaborators

4 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 $κ_{n}$ , for a prime number p>3 and n=p-1. Our method involves a detailed comparison of the Picard spectral…

math.AT2022

Mod $p$ homology of unordered configuration spaces of surfaces

Matthew Chen, Adela YiYu Zhang

We provide a short proof that the dimensions of the mod $p$ homology groups of the unordered configuration space $B_{k} (T)$ of $k$ points in a torus are the same as its Betti numbers…

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

Mod p homology of unordered configuration spaces of surfaces

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

Mod $p$ homology of unordered configuration spaces of surfaces