23

Answers
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4
What out-of-print books would you like to see re-printed?
4
Why does the (S2) property of a ring correspond to the Hartogs phenomenon?
3
Explaining the concept of projective space: notes for students
2
explanation on a scheme which is not affine scheme
5
Subtle examples of morphisms that are finite but not flat
5
What should be learned in a first serious schemes course?
0
Degree of image of a polynomial map
2
What is the general geometric interpretation of modules in algebraic geometry?
8
What elementary problems can you solve with schemes?
5
Cardinalities larger than the continuum in areas besides set theory
1
Lower bounds on the degrees of representatives of $u^n$ as $n \to \infty$
0
Compact and quasi-compact
5
Is $X\times \mathbb{P}^{n}$ connected for a smooth, proper and connected scheme $X$?
1
Can $\mathbb{P}^n$ be regarded as an algebraic vector bundle over some algebraic variety?
3
Indices for math texbooks/monographs
4
Can a scheme be defined by gluing open affines such that the intersections are affine?
4
When is it true that the ring of global regular functions on a projective variety is just the base ring?
11
Are there situations when regarding isomorphic objects as identical leads to mistakes?
15
Converse of Principal Ideal Theorem
7
What’s the difference between a real manifold and a smooth variety?
3
If we can define a topology on the set of all the ideals of a commutative ring?
3
When is a morphism proper?
1
Images and Monomorphisms of Schemes