Question

Confusion with automorphisms of a projective variety with ample or antiample canonical class

score 221 · Answer 1 · 2023-06-18 19:20:12

221

Views

Confusion with automorphisms of a projective variety with ample or antiample canonical class

Published on 18 Jun 2023 - 19:20

score 176 · Answer 2 · 2023-06-23 16:55:17

176

Views

Using Riemann-Roch Theorem to show every elliptic curve can be written as a plane cubic

Published on 23 Jun 2023 - 16:55

score 82 · Answer 3 · 2023-06-26 03:26:17

82

Views

Theorem 7.3.17 in (Qingliu) Algebraic Geometry and Arithmetic curve

Published on 26 Jun 2023 - 3:26

score 45 · Answer 4 · 2026-03-25 05:06:43

45

Views

Reference request: Calabi-Yau toric manifold condition in algebraic geometry

Published on 25 Mar 2026 - 5:06

score 36 · Answer 5 · 2023-07-02 12:41:42

36

Views

Multiplicity of Weil divisor on affine cone

Published on 02 Jul 2023 - 12:41

score 191 · Answer 6 · 2023-07-06 23:35:26

191

Views

Doubt on base point for a linear system

Published on 06 Jul 2023 - 23:35

score 30 · Answer 7 · 2023-07-13 15:03:45

30

Views

Reference request: ramification divisor of simple perverse sheaf

Published on 13 Jul 2023 - 15:03

score 64 · Answer 8 · 2023-08-12 14:54:03

64

Views

A divisor $D$ that satisfies $D|_{U_i}=(f)$ on complements of prime divisors $Z_i=X-U_i$ is principle, and $D=(f)$.

Published on 12 Aug 2023 - 14:54

score 27 · Answer 9 · 2026-03-25 13:56:25

27

Views

For $D$ very ample on a threefold $X$, is it true that $D^2.S\geq(\operatorname{mult}_x D)^2\cdot\operatorname{mult}_x S$?

Published on 25 Mar 2026 - 13:56

score 36 · Answer 10 · 2026-02-23 16:52:11

36

Views

Pullback of a translation map of a divisor in Birkenhake-Lange's book "Complex Abelian Varieties"

Published on 23 Feb 2026 - 16:52

score 190 · Answer 11 · 2023-09-13 08:46:13

190

Views

For what schemes $X$ are Cartier divisors the same thing as invertible subsheaves of $\mathcal{K}_X$?

Published on 13 Sep 2023 - 8:46

score 78 · Answer 12 · 2023-09-14 07:46:52

78

Views

Krull dimension of the local ring at the generic point of a divisor is 1.

Published on 14 Sep 2023 - 7:46

score 17 · Answer 13 · 2026-03-14 01:56:45

17

Views

Computing the p-rank of Divisor class group for function field

Published on 14 Mar 2026 - 1:56

score 62 · Answer 14 · 2023-09-17 18:37:00

62

Views

Relation between the sheaf of relative differentials and the canonical divisor

Published on 17 Sep 2023 - 18:37

score 302 · Answer 15 · 2023-09-19 11:15:35

302

Views

Linearly equivalent divisors are numerically equivalent

Published on 19 Sep 2023 - 11:15

List Question

Confusion with automorphisms of a projective variety with ample or antiample canonical class

Using Riemann-Roch Theorem to show every elliptic curve can be written as a plane cubic

Theorem 7.3.17 in (Qingliu) Algebraic Geometry and Arithmetic curve

Reference request: Calabi-Yau toric manifold condition in algebraic geometry

Multiplicity of Weil divisor on affine cone

Doubt on base point for a linear system

Reference request: ramification divisor of simple perverse sheaf

A divisor $D$ that satisfies $D|_{U_i}=(f)$ on complements of prime divisors $Z_i=X-U_i$ is principle, and $D=(f)$.

For $D$ very ample on a threefold $X$, is it true that $D^2.S\geq(\operatorname{mult}_x D)^2\cdot\operatorname{mult}_x S$?

Pullback of a translation map of a divisor in Birkenhake-Lange's book "Complex Abelian Varieties"

For what schemes $X$ are Cartier divisors the same thing as invertible subsheaves of $\mathcal{K}_X$?

Krull dimension of the local ring at the generic point of a divisor is 1.

Computing the p-rank of Divisor class group for function field

Relation between the sheaf of relative differentials and the canonical divisor

Linearly equivalent divisors are numerically equivalent

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