Compound Optics
arXiv:2203.12022
Abstract
Simple optics are defined using actions of monoidal categories. Compound optics arise, for instance, as natural transformations between polynomial functors. Since a monoidal category is a special case of a bicategory, we formulate complex optics using the action of a bicategory. We show that polynomial optics are a special case of complex optics defined by the action of bicategory on co-presheaves.
9 pages