Question

What are the conditions for a function $f\colon X \to Y$ to be regular when $X$ and $Y$ are prevarieties?

score 42 · Answer 1 · 2026-03-26 04:36:23

42

Views

What are the conditions for a function $f\colon X \to Y$ to be regular when $X$ and $Y$ are prevarieties?

Published on 26 Mar 2026 - 4:36

score 11 · Answer 2 · 2026-03-10 22:03:26

11

Views

Zariski-density on almost diagonal embedding

Published on 10 Mar 2026 - 22:03

score 41 · Answer 3 · 2024-03-08 10:17:09

41

Views

Existence of affine varieties and regular map solving functional equation for polynomials

Published on 08 Mar 2024 - 10:17

score 41 · Answer 4 · 2024-03-12 01:26:48

41

Views

Dominant rational maps and dimension of affine varieties

Published on 12 Mar 2024 - 1:26

score 18 · Answer 5 · 2026-03-23 09:05:41

18

Views

Fact checking: are these inclusion relations regarding algebraic varieties of polynomial ideals correct?

Published on 23 Mar 2026 - 9:05

score 17 · Answer 6 · 2026-03-26 16:23:01

17

Views

Morphism of varieties is continuous between analytic varieties.

Published on 26 Mar 2026 - 16:23

score 23 · Answer 7 · 2024-03-29 15:35:04

23

Views

Quasi-affine variety with non finitely-generated global section

Published on 29 Mar 2024 - 15:35

score 70 · Answer 8 · 2024-03-31 06:33:34

70

Views

Is $\textit{affine space}$ the same as $\textit{quotient space}$?

Published on 31 Mar 2024 - 6:33

score 18 · Answer 9 · 2026-03-19 05:15:22

18

Views

General way to determine whether a subset of a vector space is an affine space.

Published on 19 Mar 2026 - 5:15

score 432 · Answer 10 · 2016-05-29 02:41:20

432

Views

Dominant Morphism on Affine Varieties

Published on 29 May 2016 - 2:41

score 3.6k · Answer 11 · 2013-05-31 16:36:32

3.6k

Views

Injective map on Coordinate rings implies dense image?

Published on 31 May 2013 - 16:36

score 58 · Answer 12 · 2017-04-11 04:50:26

58

Views

Hands on description of $X\times_G Y$, where $X$, $Y$ are varieties with group action from $G$.

Published on 11 Apr 2017 - 4:50

score 1k · Answer 13 · 2017-04-12 14:23:39

1k

Views

Regular map between quasiprojective varieties are continuous

Published on 12 Apr 2017 - 14:23

score 276 · Answer 14 · 2017-04-20 21:53:36

276

Views

Confusion about primary decomposition

Published on 20 Apr 2017 - 21:53

score 110 · Answer 15 · 2017-04-23 07:05:15

110

Views

Proposition from Mumford's Red Book

Published on 23 Apr 2017 - 7:05

List Question

What are the conditions for a function $f\colon X \to Y$ to be regular when $X$ and $Y$ are prevarieties?

Zariski-density on almost diagonal embedding

Existence of affine varieties and regular map solving functional equation for polynomials

Dominant rational maps and dimension of affine varieties

Fact checking: are these inclusion relations regarding algebraic varieties of polynomial ideals correct?

Morphism of varieties is continuous between analytic varieties.

Quasi-affine variety with non finitely-generated global section

Is $\textit{affine space}$ the same as $\textit{quotient space}$?

General way to determine whether a subset of a vector space is an affine space.

Dominant Morphism on Affine Varieties

Injective map on Coordinate rings implies dense image?

Hands on description of $X\times_G Y$, where $X$, $Y$ are varieties with group action from $G$.

Regular map between quasiprojective varieties are continuous

Confusion about primary decomposition

Proposition from Mumford's Red Book

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