267

Answers

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0

Applications of Govorov-Lazard Theorem?

6

Using the Yoneda embedding to talk about exactness in an additive category

10

Separable and algebraic closures?

4

Fixed point theorems

1

Are the projection morphisms from a product of varieties necessarily open?

-1

Stone–Čech Compactification of $\mathbb{Z}$ with Fürstenberg Topology

1

Self-containing structures

2

+ functor (used to construct sheafification)'s property

0

Local ring of product of varieties

7

Is every projective $\mathbf{Z}[x]$-module free?

9

Awfully sophisticated proof for simple facts

2

Structure theorem for etale maps

13

Using schemes to prove things about rings

2

Generators of the kernel of multiplication of a ring

0

Leray spectral sequence of the inclusion of an open subvariety

3

Alternate definition of vector bundle?

4

Categories where projective objects are flat

3

What kind of subset is Spec(R_P) in Spec(R)?

6

demazure’s and gabriel’s book, problem with the proof of a theorem

6

Why is Set, and not Rel, so ubiquitous in mathematics?

3

Are epimorphisms from a division ring isomorphisms ?

7

When does sheaf cohomology commute with arbitrary direct sums?

7

When must it be sets rather than proper classes, or vice-versa, outside of foundational mathematics?

2

Colimit notation

8

Realizing universal C*-algebras as concrete C*-algebras

1

Video lectures of mathematics courses available online for free

3

Kernel elements for the Grothendieck group map of a commutative monoid

2

Is an additive category a balanced category?

5

Discovering and selecting conferences

4

Grothendieck topology for a non-small category