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University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Pre-sheaves of spaces and the Grothendieck construction in higher geometry

## Pre-sheaves of spaces and the Grothendieck construction in higher geometryAdd to your list(s) Download to your calendar using vCal - Danny Stevenson (University of Adelaide)
- Thursday 30 March 2017, 16:00-17:00
- Seminar Room 1, Newton Institute.
If you have a question about this talk, please contact info@newton.ac.uk. OASW02 - Subfactors, higher geometry, higher twists and almost Calabi-Yau algebras The notion of pre-stack in algebraic geometry can be formulated either in terms of categories fibered in groupoids, or else as a functor to the category of groupoids with composites only preserved up to a coherent system of natural isomorphisms. The device which lets one shift from one perspective to the other is known as the `Grothendieck construction' in category theory. This talk is part of the Isaac Newton Institute Seminar Series series. ## This talk is included in these lists:- All CMS events
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