Mathematical Sciences Classification System
17Axx - General nonassociative rings
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                            17A01General theory
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                            17A05Power-associative rings
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                            17A15Noncommutative Jordan algebras
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                            17A20Flexible algebras
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                            17A30Algebras satisfying other identities
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                            17A32Leibniz algebras
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                            17A35Division algebras
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                            17A36Automorphisms, derivations, other operators
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                            17A40Ternary compositions
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                            17A42Other $n$-ary compositions $(n \ge 3)$
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                            17A45Quadratic algebras (but not quadratic Jordan algebras)
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                            17A50Free algebras
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                            17A60Structure theory
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                            17A65Radical theory
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                            17A70Superalgebras
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                            17A75Composition algebras
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                            17A80Valued algebras
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                            17A99None of the above, but in this section