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15
Math.TechQA.Club
2026-04-14 02:11:56
492
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A question about Hartshorne III 12.2
Published on
14 Apr 2026 - 2:11
#algebraic-geometry
#sheaf-theory
87
Views
Parabola tangent to four lines
Published on
12 Apr 2026 - 23:24
#algebraic-geometry
#algebraic-curves
86
Views
Parametrize a line in $\mathbb {CP}^1\times\mathbb{CP}^1$
Published on
15 Apr 2026 - 4:19
#algebraic-geometry
715
Views
What is the maximal ideal of $\mathbb{Q}[x,y]$ corresponding to $(\sqrt{2},\sqrt{2})$?
Published on
17 Apr 2026 - 12:41
#abstract-algebra
#algebraic-geometry
#polynomials
#commutative-algebra
#ideals
550
Views
Hartshorne exercise 1.3.8
Published on
16 Apr 2026 - 20:09
#algebraic-geometry
405
Views
Support of a quasicoherent sheaf
Published on
24 Apr 2026 - 8:13
#algebraic-geometry
#commutative-algebra
2.4k
Views
Holomorphic line bundle with degree zero
Published on
12 Apr 2026 - 19:46
#algebraic-geometry
#riemann-surfaces
105
Views
ample anticanonical system implies regularity
Published on
10 Apr 2026 - 21:42
#algebraic-geometry
#surfaces
867
Views
Empty set in projective space has negative dimension?
Published on
14 Apr 2026 - 5:08
#algebraic-geometry
659
Views
Atiyah & Macdonald's Introduction to Commutative Algebra, Exercise 8.5
Published on
14 Apr 2026 - 22:27
#algebraic-geometry
#commutative-algebra
#covering-spaces
1.4k
Views
Linear equivalence vs algebraic equivalence of divisors on smooth projective surfaces
Published on
11 Apr 2026 - 8:50
#algebraic-geometry
#equivalence-relations
#surfaces
79
Views
Why notion of fundamental group is defined only over a connected scheme?
Published on
04 May 2026 - 11:08
#algebraic-geometry
#algebraic-topology
50
Views
How to compute $U \cap wUw^{-1}$?
Published on
14 Apr 2026 - 1:01
#algebraic-geometry
#algebraic-groups
542
Views
The Zariski topology on $\operatorname{Spec} A$ as an intial topology
Published on
24 Apr 2026 - 6:50
#general-topology
#algebraic-geometry
#commutative-algebra
722
Views
Blowup of a (very) simple singularity
Published on
10 May 2026 - 13:49
#algebraic-geometry
#complex-geometry
#singularity-theory
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