List questions from homological-algebra

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Matrix factorization hypersurface ring

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Weights appearing in a finite-dimensional module over semisimple Lie algebra

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derived category of quotient category

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References: Introductory Books for Algebraic Topology

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Dummit and Foote Section 10.5 Prop 25 Proof (Part of The Splitting Lemma)

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Vanishing Hochschild Cohomology over Polynomial Rings

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Does the defintion of chain equivalence have anything to do with liebniz product rule of differentiation?

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Euler characteristics of Tensor power of line bundle

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Mapping cone and additive functors

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Defining contravariant left/right-exact functor with opposite category?

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205

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Does $\mathcal{O}_X\text{-Mod}$ have enough projectives?

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617

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Are quasi-isomorphisms always invertible in the homotopy category?

Published on 17 Mar 2026 - 12:48

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Proving a diagram chase result from standard lemmas

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In a module X over R, if $a\in R$ such that $a.x=0$ for all $x\in X$, then $a=0$?

Published on 26 Mar 2026 - 1:17

List Question

Proof of the Schur–Zassenhaus theorem without using homological algebra?

Matrix factorization hypersurface ring

Weights appearing in a finite-dimensional module over semisimple Lie algebra

derived category of quotient category

References: Introductory Books for Algebraic Topology

Dummit and Foote Section 10.5 Prop 25 Proof (Part of The Splitting Lemma)

Vanishing Hochschild Cohomology over Polynomial Rings

Does the defintion of chain equivalence have anything to do with liebniz product rule of differentiation?

Euler characteristics of Tensor power of line bundle

Mapping cone and additive functors

Defining contravariant left/right-exact functor with opposite category?

Does $\mathcal{O}_X\text{-Mod}$ have enough projectives?

Are quasi-isomorphisms always invertible in the homotopy category?

Proving a diagram chase result from standard lemmas

In a module X over R, if $a\in R$ such that $a.x=0$ for all $x\in X$, then $a=0$?

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