activity
20182022
most citedCovariant & Contravariant Homotopy Theories

2 citations · 2 across the 5 of their papers we have counts for

collaborators

6 papers

math.CT2022

The universal coCartesian fibration

Denis-Charles Cisinski, Hoang Kim Nguyen

We give a new proof of the straightening/unstraightening correspondence by proving a generalization of the univalence property of the universal coCartesian fibration.

math.CT2022

A note on coCartesian fibrations

Hoang Kim Nguyen

We prove properness of (co)Cartesian fibrations as well as a straightening and unstraightening equivalence, which is compatible with cartesian products, when the base is the nerve…

math.CT2022

-type theories

Hoang Kim Nguyen, Taichi Uemura

We introduce -type theories as an -categorical generalization of the categorical definition of type theories introduced by the second named author. We establish ana…

math.CT2021

Higher weak (co)limits, adjoint functor theorems, and higher Brown representability

Hoang Kim Nguyen, George Raptis, Christoph Schrade

We prove general adjoint functor theorems for weakly (co)complete -categories. This class of -categories includes the homotopy -categories of (co)complete -categor…

math.CT2019★ 2 cited

Covariant & Contravariant Homotopy Theories

Hoang Kim Nguyen

Given a locally presentable category together with a suitable functorial cylinder object, we construct model structures which are sensitive to the `direction' of the cylinder. We s…

math.CT2018

Adjoint functor theorems for -categories

Hoang Kim Nguyen, George Raptis, Christoph Schrade

Adjoint functor theorems give necessary and sufficient conditions for a functor to admit an adjoint. In this paper we prove general adjoint functor theorems for functors between $\…