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Timeline for The concept of duality

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Jan 19, 2021 at 14:07 comment added Antoine Labelle Cartier duality is one of my favorite dualities! Even though the group multiplication of the commutative algebraic group and the multiplication in its coordinate ring look at the first glance (from the usual definition of group schemes) totally different things, they turn out to be perfectly dual to each other if you unravel the axioms in commutative diagrams, which is what allows Cartier duality. The duality is best seen by noting that commutative algebraic groups are basically equivalent to Hopf algebras, which is an obviously self-dual structure.
S Dec 11, 2019 at 22:03 history answered Exit path CC BY-SA 4.0
S Dec 11, 2019 at 22:03 history made wiki Post Made Community Wiki by Exit path