List questions from pullback

Published on 22 Feb 2026 - 19:50

661

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Is a conformal transformation also a general coordinate transformation?

Published on 22 Feb 2026 - 17:53

68

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Pullback square with two identical sides

Published on 22 Feb 2026 - 19:27

220

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Pullbacks and differential forms, require deep explanation + algebra rules

Published on 22 Feb 2026 - 17:50

85

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$\Pi_f$ for a morphism $f$ between simplicial sets

Published on 22 Feb 2026 - 19:54

350

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Find a non vanishing differential form on the torus

Published on 22 Feb 2026 - 19:55

79

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Suppose that $X$ is a sub affine variety of $Y$ , and let $φ : X \to Y$ be the inclusion. Prove that $φ^*$ is surjective...

Published on 22 Feb 2026 - 19:54

81

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Equality Proof of Pushforward and Pullback

Published on 22 Feb 2026 - 19:47

320

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Why $f'$ is an isomorphism if the rightmost square is a pullback?

Published on 22 Feb 2026 - 19:55

404

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Why the rightmost square is a pullback?

Published on 22 Feb 2026 - 19:47

213

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Prove pullback of $f$ on $T^{k}(V)$ is a linear transformation

Published on 22 Feb 2026 - 19:55

187

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Given Pullback of $R$-modules, show that if $f$ is injective, then $\alpha$ is injective

Published on 22 Feb 2026 - 21:37

193

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What is a Presheaf-category enriched pullback?

Published on 22 Feb 2026 - 21:34

287

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Push-forward and Category theory

Published on 22 Feb 2026 - 21:34

1.5k

Views

Why are epis stable under pullback in an abelian category ?

Published on 22 Feb 2026 - 21:35

List Question

Pullbacks and pushouts with surjective functions and quotient sets?

Is a conformal transformation also a general coordinate transformation?

Pullback square with two identical sides

Pullbacks and differential forms, require deep explanation + algebra rules

$\Pi_f$ for a morphism $f$ between simplicial sets

Find a non vanishing differential form on the torus

Suppose that $X$ is a sub affine variety of $Y$ , and let $φ : X \to Y$ be the inclusion. Prove that $φ^*$ is surjective...

Equality Proof of Pushforward and Pullback

Why $f'$ is an isomorphism if the rightmost square is a pullback?

Why the rightmost square is a pullback?

Prove pullback of $f$ on $T^{k}(V)$ is a linear transformation

Given Pullback of $R$-modules, show that if $f$ is injective, then $\alpha$ is injective

What is a Presheaf-category enriched pullback?

Push-forward and Category theory

Why are epis stable under pullback in an abelian category ?

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