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The tag crystals seems to be used for three completely different meanings: 1) Quantum groups/representation theory/combinatorial crystals 2) Crystals in algebraic geometry/category theory 3) Crystals in physics/condensed matter. I'm not sure what would be the best way to separate these. Perhaps "crystal-bases" or "crystal-graphs" for 1 ...


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The tag ft.factorization-theory was created in 2016 by a user who did almost the totality of the 23 questions with it. It is formatted as a top-level tag, while it isn't. Could it be changed to factorization-theory? This tag has empty tag info, seems to be concerned with the multiplicative monoid in rings and factorization question therein. Although it's ...


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