Question

Prove $X=(y^{2}z-x^{3}+xz^{2})\backslash\{(1,0,-1)\}$ is irreducible.

score 127 · Answer 1 · 2026-04-16 06:21:56

127

Views

Prove $X=(y^{2}z-x^{3}+xz^{2})\backslash\{(1,0,-1)\}$ is irreducible.

Published on 16 Apr 2026 - 6:21

score 102 · Answer 2 · 2026-04-13 10:21:41

102

Views

Elliptic curves in $\Bbb P^3$

Published on 13 Apr 2026 - 10:21

score 1.5k · Answer 3 · 2026-04-14 12:22:41

1.5k

Views

Closed points of a scheme (locally) of finite type over an algebraically closed field

Published on 14 Apr 2026 - 12:22

score 129 · Answer 4 · 2026-04-16 04:44:43

129

Views

Closed orbits of complete flags in $\mathbb{C}^n$

Published on 16 Apr 2026 - 4:44

score 290 · Answer 5 · 2026-04-11 22:31:07

290

Views

question of some invertible sheaves

Published on 11 Apr 2026 - 22:31

score 299 · Answer 6 · 2026-04-29 12:42:00

299

Views

Note or book on Examples of regular, Gorenstein, Cohen Macaulay, ... rings

Published on 29 Apr 2026 - 12:42

score 459 · Answer 7 · 2026-04-12 04:33:50

459

Views

Proof of Projective Nullstellensatz

Published on 12 Apr 2026 - 4:33

score 536 · Answer 8 · 2026-04-13 12:16:35

536

Views

Finite surjective morphisms between integral algebraic varieties and universal injectivity.

Published on 13 Apr 2026 - 12:16

score 1.5k · Answer 9 · 2026-04-11 00:17:21

1.5k

Views

Example of Gluing Schemes

Published on 11 Apr 2026 - 0:17

score 401 · Answer 10 · 2026-04-14 09:55:58

401

Views

Show that the projective closure of V(x) and V($x-y^4-z^4$) in $P^3$ is not isomorphic

Published on 14 Apr 2026 - 9:55

score 138 · Answer 11 · 2026-04-14 04:36:08

138

Views

Basic question in the radical of an ideal

Published on 14 Apr 2026 - 4:36

score 210 · Answer 12 · 2026-04-16 08:19:38

210

Views

Existence of a long exact sequence for sheaf cohomology

Published on 16 Apr 2026 - 8:19

score 118 · Answer 13 · 2026-04-10 09:31:54

118

Views

About the calculation of cohomology groups on projective space

Published on 10 Apr 2026 - 9:31

score 52 · Answer 14 · 2026-04-17 08:36:35

52

Views

$X=Spec(A)$. $X=\bigcup\limits_{i=1}^N D(f_i)\Rightarrow (f_1, ..., f_N)=A$

Published on 17 Apr 2026 - 8:36

score 830 · Answer 15 · 2026-04-15 17:25:21

830

Views

Prym variety associated to an étale cover of degree 2 of an hyperelliptic curve.

Published on 15 Apr 2026 - 17:25

List Question

Prove $X=(y^{2}z-x^{3}+xz^{2})\backslash\{(1,0,-1)\}$ is irreducible.

Elliptic curves in $\Bbb P^3$

Closed points of a scheme (locally) of finite type over an algebraically closed field

Closed orbits of complete flags in $\mathbb{C}^n$

question of some invertible sheaves

Note or book on Examples of regular, Gorenstein, Cohen Macaulay, ... rings

Proof of Projective Nullstellensatz

Finite surjective morphisms between integral algebraic varieties and universal injectivity.

Example of Gluing Schemes

Show that the projective closure of V(x) and V($x-y^4-z^4$) in $P^3$ is not isomorphic

Basic question in the radical of an ideal

Existence of a long exact sequence for sheaf cohomology

About the calculation of cohomology groups on projective space

$X=Spec(A)$. $X=\bigcup\limits_{i=1}^N D(f_i)\Rightarrow (f_1, ..., f_N)=A$

Prym variety associated to an étale cover of degree 2 of an hyperelliptic curve.

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