Question

Real affine variety of $d$ orthonormal vectors in $\mathbb R^n$

score 134 · Answer 1 · 2026-04-15 15:29:00

134

Views

Real affine variety of $d$ orthonormal vectors in $\mathbb R^n$

Published on 15 Apr 2026 - 15:29

score 959 · Answer 2 · 2026-04-09 05:11:01

959

Views

Is $Spec(R_p)$ to $Spec(R)$ is an open immersion?

Published on 09 Apr 2026 - 5:11

score 90 · Answer 3 · 2026-04-12 14:26:26

90

Views

Question related to the definition of affine schemes

Published on 12 Apr 2026 - 14:26

score 134 · Answer 4 · 2026-04-12 14:12:06

134

Views

Eisenbud/Haris, Exercice I-53: morphism between global spectra

Published on 12 Apr 2026 - 14:12

score 42 · Answer 5 · 2026-03-29 06:52:11

42

Views

More confusion about the definition of smooth morphisms of schemes

Published on 29 Mar 2026 - 6:52

score 432 · Answer 6 · 2026-03-25 17:36:21

432

Views

Understanding Chinese Remainder Theorem using Schemes

Published on 25 Mar 2026 - 17:36

score 249 · Answer 7 · 2026-03-20 10:29:01

249

Views

What is the ring defining the intersection of two open affines in a variety?

Published on 20 Mar 2026 - 10:29

score 45 · Answer 8 · 2026-03-25 19:06:42

45

Views

On a morphism of schemes defined by sheaves of algebras

Published on 25 Mar 2026 - 19:06

score 64 · Answer 9 · 2026-03-25 17:41:53

64

Views

How to show two rings $(A_f)_{g'}$ and $A_{f g''}$, where $g' = g''/f^n$, are isomorphic?

Published on 25 Mar 2026 - 17:41

score 512 · Answer 10 · 2026-04-17 14:41:39

512

Views

Question about the statement of Chapter II Ex 2.7 in Hartshorne about $Spec K \to X$ beng equivalent to the inclusion $k(x) \to K$

Published on 17 Apr 2026 - 14:41

score 122 · Answer 11 · 2026-03-25 19:05:34

122

Views

If $p$ is a closed point then $X-p$ is not an affine scheme

Published on 25 Mar 2026 - 19:05

score 115 · Answer 12 · 2026-04-26 11:11:18

115

Views

What is the Chern class of a line bundle over a number ring?

Published on 26 Apr 2026 - 11:11

score 543 · Answer 13 · 2026-03-25 20:41:57

543

Views

A reduced induced closed subscheme structure of an affine scheme

Published on 25 Mar 2026 - 20:41

score 307 · Answer 14 · 2026-03-25 20:33:52

307

Views

Morphisms between affine schemes are separated

Published on 25 Mar 2026 - 20:33

score 211 · Answer 15 · 2026-03-25 17:40:10

211

Views

How to show that the closed immersion from a reduced induced closed subscheme is unique?

Published on 25 Mar 2026 - 17:40

List Question

Real affine variety of $d$ orthonormal vectors in $\mathbb R^n$

Is $Spec(R_p)$ to $Spec(R)$ is an open immersion?

Question related to the definition of affine schemes

Eisenbud/Haris, Exercice I-53: morphism between global spectra

More confusion about the definition of smooth morphisms of schemes

Understanding Chinese Remainder Theorem using Schemes

What is the ring defining the intersection of two open affines in a variety?

On a morphism of schemes defined by sheaves of algebras

How to show two rings $(A_f)_{g'}$ and $A_{f g''}$, where $g' = g''/f^n$, are isomorphic?

Question about the statement of Chapter II Ex 2.7 in Hartshorne about $Spec K \to X$ beng equivalent to the inclusion $k(x) \to K$

If $p$ is a closed point then $X-p$ is not an affine scheme

What is the Chern class of a line bundle over a number ring?

A reduced induced closed subscheme structure of an affine scheme

Morphisms between affine schemes are separated

How to show that the closed immersion from a reduced induced closed subscheme is unique?

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