List questions from divisors-algebraic-geometry

Published on 25 Mar 2026 - 22:06

101

Views

Equal divisors of Weil-pairing

Published on 23 Aug 2020 - 11:09

140

Views

Weil divisor arising from invertible sheaf and rational section?

Published on 25 Mar 2026 - 22:03

63

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Is the affine cuspidal cubic an ample divisor in the affine plane?

Published on 27 Aug 2020 - 23:09

76

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Extending a projection $S\setminus L\to \Bbb{P}^1$ to the whole cubic surface $S$

Published on 28 Aug 2020 - 16:08

62

Views

When are curves smooth in a pencil $C_{(s:t)}=\{sF+tG\}$

Published on 03 Sep 2020 - 18:36

731

Views

Doubly periodic meromorphic function with prescribed poles and zeros

Published on 25 Mar 2026 - 21:47

726

Views

The degree of vector bundle on integral projective curve is the degree of its determinant bundle.

Published on 09 Sep 2020 - 2:49

120

Views

Preimage of prime Weil divisor is prime Weil divisor in Hartshorne

Published on 11 Sep 2020 - 14:23

565

Views

Divisor of a rational section in Ravi Vakil's notes

Published on 25 Mar 2026 - 22:03

90

Views

For curves $A,B$ in $X\cap Y$, the intersection numbers $(A\cdot B)_X$ and $(A\cdot B)_Y$ are the same

Published on 14 Sep 2020 - 1:01

306

Views

A proof and explanation for why divisor classes pull back along flat morphisms

Published on 20 Sep 2020 - 4:26

92

Views

Normal sheaf of a nonsingular subvariety

Published on 20 Sep 2020 - 13:36

253

Views

Divisor of meromorphic functions on Riemann surfaces

Published on 23 Sep 2020 - 10:54

59

Views

Free Abelian Group Generated by Codimension 1 Subvarieties: A Line.

Published on 26 Mar 2026 - 7:58

List Question

Valuation of a rational section of an invertible sheaf at a codim 1 point

Equal divisors of Weil-pairing

Weil divisor arising from invertible sheaf and rational section?

Is the affine cuspidal cubic an ample divisor in the affine plane?

Extending a projection $S\setminus L\to \Bbb{P}^1$ to the whole cubic surface $S$

When are curves smooth in a pencil $C_{(s:t)}=\{sF+tG\}$

Doubly periodic meromorphic function with prescribed poles and zeros

The degree of vector bundle on integral projective curve is the degree of its determinant bundle.

Preimage of prime Weil divisor is prime Weil divisor in Hartshorne

Divisor of a rational section in Ravi Vakil's notes

For curves $A,B$ in $X\cap Y$, the intersection numbers $(A\cdot B)_X$ and $(A\cdot B)_Y$ are the same

A proof and explanation for why divisor classes pull back along flat morphisms

Normal sheaf of a nonsingular subvariety

Divisor of meromorphic functions on Riemann surfaces

Free Abelian Group Generated by Codimension 1 Subvarieties: A Line.

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