List questions from algebraic-geometry

Published on 27 Mar 2026 - 17:24

157

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How to show a rational polynomial is irreducible in $\mathbb{Q}[a,b,c]$?

Published on 16 Jun 2018 - 6:19

143

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Exponential series problem

Published on 16 Jun 2018 - 6:44

201

Views

Lefschetz (1,1) theorem for quasi-projective varieties

Published on 22 Mar 2026 - 20:47

84

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Local invariant cycles with integer coefficients

Published on 23 Mar 2026 - 7:14

58

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Comparing cohomologies of $\mathcal{O}_X$ and $\mathcal{O}_{X_\text{red}}$

Published on 25 Mar 2026 - 1:17

218

Views

Equivalent definitions for node

Published on 27 Mar 2026 - 2:01

114

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Notion of inner automorphisms for group schemes

Published on 23 Mar 2026 - 0:23

190

Views

Serre's (Krull's) criterion for normality in practice

Published on 25 Mar 2026 - 6:11

29

Views

Weighted Projective Space not $S_1$ generated

Published on 17 Jun 2018 - 2:03

277

Views

Invertible Sheaf of Closed Point in Projective Space

Published on 26 Mar 2026 - 1:10

175

Views

Dominating morphism $f:X \longrightarrow Y \Rightarrow$? any irreducible component of $X$ dominates $Y$

Published on 17 Jun 2018 - 3:51

153

Views

Moduli space of lines in $\mathbb{CP}^3$

Published on 25 Mar 2026 - 12:49

198

Views

compute f-and h-vector of simplicial complex

Published on 25 Mar 2026 - 3:01

206

Views

Pullback of the Frobenius map and function fields extension

Published on 27 Mar 2026 - 4:04

List Question

G-equivariant isomorphism inducing isomorphisms on quotients

How to show a rational polynomial is irreducible in $\mathbb{Q}[a,b,c]$?

Exponential series problem

Lefschetz (1,1) theorem for quasi-projective varieties

Local invariant cycles with integer coefficients

Comparing cohomologies of $\mathcal{O}_X$ and $\mathcal{O}_{X_\text{red}}$

Equivalent definitions for node

Notion of inner automorphisms for group schemes

Serre's (Krull's) criterion for normality in practice

Weighted Projective Space not $S_1$ generated

Invertible Sheaf of Closed Point in Projective Space

Dominating morphism $f:X \longrightarrow Y \Rightarrow$? any irreducible component of $X$ dominates $Y$

Moduli space of lines in $\mathbb{CP}^3$

compute f-and h-vector of simplicial complex

Pullback of the Frobenius map and function fields extension

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