activity
20162026
most citedTopological field theories on open-closed -spin surfaces

8 citations · 20 across the 9 of their papers we have counts for

collaborators

12 papers

math.CT2026

The -category of spans

Jonte Gödicke, Quoc P. Ho, Walker H. Stern

In this paper, we construct the -category of spans, also known as correspondences, in any given -category $\mathcal…

math.AT2024

Cyclic Segal Spaces

Julia E. Bergner, Walker H. Stern

In this survey article, we review some conceptual approaches to the cyclic category , as well as its description as a crossed simplicial group. We then give a new proof of the m…

math.CT2023★ 2 cited

Frobenius and commutative pseudomonoids in the bicategory of spans

Ivan Contreras, Rajan Amit Mehta, Walker H. Stern

In previous work by the first two authors, Frobenius and commutative algebra objects in the category of spans of sets were characterized in terms of simplicial sets satisfying cert…

math.AT2023

On cofinal functors of -bicategories

Fernando Abellán, Walker H. Stern

In this work, we study the notion of cofinal functor of -bicategories with respect to the theory of partially lax colimits. The main result of this paper is a characterizat…

math.AT2022

2-Cartesian fibrations II: A Grothendieck construction for -bicategories

Fernando Abellán, Walker H. Stern

In this work, we conclude our study of fibred -bicategories by providing a Grothendieck construction in this setting. Given a scaled simplicial set (which need not be f…

math.AT2021

2-Cartesian fibrations I: A model for -bicategories fibred in -bicategories

Fernando Abellán García, Walker H. Stern

In this paper, we provide a notion of -bicategories fibred in -bicategories which we call 2-Cartesian fibrations. Our definition is formulated using the language of…