List questions from schemes

Published on 13 Apr 2026 - 18:16

59

Views

Is there a bound on the number of irreducible components in terms of the (arithmetic) genus?

Published on 11 May 2026 - 1:11

134

Views

Relation between different definitions of modular forms.

Published on 10 May 2026 - 14:58

738

Views

Hartshorne Algebraic Geometry Exercise II.2.16.

Published on 16 Apr 2026 - 5:59

201

Views

Local ring of a surface: polynomial expression

Published on 10 May 2026 - 13:48

464

Views

Underlying variety of $\mathbb{G}_m$

Published on 10 May 2026 - 15:51

307

Views

A question on the fibered product of schemes

Published on 13 Apr 2026 - 4:53

132

Views

Testing bijectivity of a morphism of schemes on points

Published on 12 Apr 2026 - 6:02

149

Views

What does it mean that a prime number "$l$" is invertible in a scheme X?

Published on 10 May 2026 - 20:54

136

Views

What does this notation for full set of sections mean?

Published on 14 Apr 2026 - 23:53

147

Views

Surjective morphism between finite étale schemes of same degree

Published on 16 Apr 2026 - 16:34

122

Views

Example of a full set of sections on product scheme that is not one on each summand

Published on 16 Apr 2026 - 20:55

69

Views

Associated Points of a Curve

Published on 17 Apr 2026 - 13:33

174

Views

"Successive extension of invertible $\mathcal{O}_S$-modules"

Published on 16 Apr 2026 - 11:49

213

Views

Pullback of $\mathcal{O}(1)$ via the degree $n$ map $\mathbb P^1 \to \mathbb P^1$

Published on 29 Apr 2026 - 12:43

List Question

Blow-up affine space along a point is isomorphic outside the center of blow-up.

Is there a bound on the number of irreducible components in terms of the (arithmetic) genus?

Relation between different definitions of modular forms.

Hartshorne Algebraic Geometry Exercise II.2.16.

Local ring of a surface: polynomial expression

Underlying variety of $\mathbb{G}_m$

A question on the fibered product of schemes

Testing bijectivity of a morphism of schemes on points

What does it mean that a prime number "$l$" is invertible in a scheme X?

What does this notation for full set of sections mean?

Surjective morphism between finite étale schemes of same degree

Example of a full set of sections on product scheme that is not one on each summand

Associated Points of a Curve

"Successive extension of invertible $\mathcal{O}_S$-modules"

Pullback of $\mathcal{O}(1)$ via the degree $n$ map $\mathbb P^1 \to \mathbb P^1$

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