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How to categorify the ring of integers localized at two

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HTLW04 - Quantum topology and categorified representation theory

We construct a triangulated monoidal idempotent complete category with the
Grothendieck ring naturally isomorphic to the ring of integers with two inverted.
This is a joint work with Yin Tian.

This talk is part of the Isaac Newton Institute Seminar Series series.

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