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user1104937
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Conceptualizing Derived Functors

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1 answer
165 views

Intuition behind large diagrams in category theory

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Kaufman Bracket on Links vs Framed Links

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1 answer
66 views

Separable extension characterization

1 vote
2 answers
60 views

Lemma 3.6.9 from Complex Topological K-Theory by Efton Park

1 vote
1 answer
76 views

Olsson's Algebraic Spaces and Stacks Paragraph 2.3.1

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1 answer
118 views

Hartshorne Proposition II.3.2

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2 answers
83 views

When one defines the localized ring $A_f$, is it tacitly assumed that $f$ is not nilpotent?

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Spivak, Volume I, page 292

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1 answer
56 views

Endomorphism ring of a module in terms of endomorphism ring of the underlying group

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52 views

Infinite product of non-units is always 0