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On a fibrational construction for optics, lenses, and Dialectica categories

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arxiv 2403.16388 v5 pith:ETWRJABV submitted 2024-03-25 math.CT cs.ITcs.LOmath.IT

classification math.CTcs.ITcs.LOmath.IT
keywords constructioncategoriesdialecticafibrationslensesfibrationalopticstower
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Categories of lenses/optics and Dialectica categories are both comprised of bidirectional morphisms of basically the same form. In this work we show how they can be considered a special case of an overarching fibrational construction, generalizing Hofstra's construction of Dialectica fibrations and Spivak's construction of generalized lenses. This construction turns a tower of Grothendieck fibrations into another tower of fibrations by iteratively twisting each of the components, using the opposite fibration construction.

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