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Results tagged with ra.rings-and-algebras
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user 427229
Non-commutative rings and algebras, non-associative algebras, universal algebra and lattice theory, linear algebra, semigroups. For questions specific to commutative algebra (that is, rings that are assumed both associative and commutative), rather use the tag ac.commutative-algebra.
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Isomorphism between a filtered vector space and its associated graded
NO. take V=W. If the map is identity on the grading, it only means the diagonal blocks are each identity. But the map only needs to be lower triangular. Restriction on the diagonal blocks leaves a lo …
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