activity
20202025
most citedProfunctor Optics, a Categorical Update

19 citations · 40 across the 10 of their papers we have counts for

collaborators

11 papers

math.CT2025

The free bifibration on a functor

Bryce Clarke, Gabriel Scherer, Noam Zeilberger

We consider the problem of constructing the free bifibration generated by a functor of categories . This problem was previously considered by Lamarche, and is closely…

math.CT2025

The Grothendieck construction for delta lenses

Bryce Clarke

Delta lenses are functors equipped with a functorial choice of lifts, generalising the notion of split opfibration. In this paper, we introduce a Grothendieck construction (or cate…

math.CT2024

Lifting twisted coreflections against delta lenses

Bryce Clarke

Delta lenses are functors equipped with a suitable choice of lifts, generalising the notion of split opfibration. In recent work, delta lenses were characterised as the right class…

math.CT2023★ 1 cited

The Algebraic Weak Factorisation System for Delta Lenses

Bryce Clarke

Delta lenses are functors equipped with a suitable choice of lifts, and are used to model bidirectional transformations between systems. In this paper, we construct an algebraic we…

math.CT2022★ 1 cited

An introduction to enriched cofunctors

Bryce Clarke, Matthew Di Meglio

Cofunctors are a kind of map between categories which lift morphisms along an object assignment. In this paper, we introduce cofunctors between categories enriched in a distributiv…

math.CT2021

Delta lenses as coalgebras for a comonad

Bryce Clarke

Delta lenses are a kind of morphism between categories which are used to model bidirectional transformations between systems. Classical state-based lenses, also known as very well-…

math.CT2021★ 4 cited

Limits and Colimits in a Category of Lenses

Emma Chollet, Bryce Clarke, Michael Johnson +3

Lenses are an important tool in applied category theory. While individual lenses have been widely used in applications, many of the mathematical properties of the corresponding cat…

math.CT2021★ 5 cited

A diagrammatic approach to symmetric lenses

Bryce Clarke

Lenses are a mathematical structure for maintaining consistency between a pair of systems. In their ongoing research program, Johnson and Rosebrugh have sought to unify the treatme…

math.CT2020★ 8 cited

Internal lenses as functors and cofunctors

Bryce Clarke

Lenses may be characterised as objects in the category of algebras over a monad, however they are often understood instead as morphisms, which propagate updates between systems. Wo…

math.CT2020★ 2 cited

Internal split opfibrations and cofunctors

Bryce Clarke

Split opfibrations are functors equipped with a suitable choice of opcartesian lifts. The purpose of this paper is to characterise internal split opfibrations through separating th…

cs.PL2020★ 19 cited

Profunctor Optics, a Categorical Update

Bryce Clarke, Derek Elkins, Jeremy Gibbons +4

Optics are bidirectional data accessors that capture data transformation patterns such as accessing subfields or iterating over containers. Profunctor optics are a particular choic…