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Non-commutative rings and algebras, non-associative algebras. Can be used in combination with ra.rings-and-algebras
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Why is "naive" definition of non-commutative spectrum bad?
I have also wondered about this question and recently came across some papers that seem to answer it.
First of all, the paper
Manuel L. Reyes, Obstructing extensions of the functor Spec to noncommu …