Greg Muller's user avatar
Greg Muller's user avatar
Greg Muller's user avatar
Greg Muller
  • Member for 14 years, 5 months
362 votes

What are some examples of colorful language in serious mathematics papers?

101 votes
Accepted

How should one think about sheafification and the difference between a sheaf and a presheaf

55 votes

Describe a topic in one sentence.

48 votes

Best algebraic geometry textbook? (other than Hartshorne)

46 votes

How to memorise (understand) Nakayama's lemma and its corollaries?

33 votes
Accepted

What is sheaf cohomology intuitively?

23 votes
Accepted

How much theory works out for "almost commutative" rings?

20 votes

Why is the exterior algebra so ubiquitous?

19 votes

Why would one expect a derived equivalence of categories to hold?

17 votes
Accepted

Why is algebraic geometry so over-represented on this site?

17 votes
Accepted

When are dual modules free?

17 votes

Can a module be an extension in two really different ways?

17 votes

What is the "right" definition of a ring?

15 votes

What, if anything, makes homogeneous polynomials so great?

14 votes

Lecture notes on representations of finite groups

14 votes

Elementary $\mathrm{Ext}^1$ intuition

10 votes
Accepted

Different definitions of the dimension of an algebra

10 votes

Proof a Weyl Algebra isn't isomorphic to a matrix ring over a division ring

10 votes

Applications of Stacks

9 votes
Accepted

Simple examples for the use of spectral sequences

9 votes

What conditions are needed for $-\otimes_A B$ to be faithful?

8 votes
Accepted

Do affine schemes form a Mal'cev category?

8 votes

Free resolution dimension?

7 votes

Proper classes and their consequences

7 votes

Are cluster variables prime elements?

6 votes

"Understanding" $\mathrm{Gal}(\bar{\mathbb{Q}}/\mathbb{Q})$

6 votes

Good introductory references on algebraic stacks?

5 votes

Examples and intuition for arithmetic schemes

5 votes

Why Drinfel'd-Jimbo-type quantum groups?

5 votes

Idempotents in Rings of Differential Operators