Mikhail Katz's user avatar
Mikhail Katz's user avatar
Mikhail Katz's user avatar
Mikhail Katz
  • Member for 11 years, 4 months
  • Last seen this week
26 votes

Breakthroughs in mathematics in 2023

25 votes

Did Cauchy think that uniform and pointwise convergence were equivalent?

23 votes

A remark of Connes on non-standard analysis

20 votes

Bounding the area of a convex body bounded in a sphere

17 votes
Accepted

What's wrong with Advanced Studies in Contemporary Mathematics (Kyungshang)?

16 votes

Set theoretical multiverse and truths

14 votes
Accepted

Foundations of topology

14 votes

Who was the first to propose a formal definition of infinity?

13 votes

When has the scaffolding been more important than the completed building?

13 votes

Problems which use S₄ → S₃

13 votes

The Origin of the Musical Isomorphisms

13 votes

Sophisticated treatments of topics in school mathematics

12 votes
Accepted

Is there a source linking Robinson's work in wing theory with his theory of infinitesimals?

12 votes

How helpful is non-standard analysis?

12 votes

What is... a grossone?

12 votes

Maximal degree of a map between orientable surfaces

11 votes

Area of a smooth complex projective curve

11 votes

Who invented projective space $\mathbb{P}^n$?

10 votes

Gromov-Hausdorff limits of 2-dimensional Riemannian surfaces

10 votes

Early illustrations of topological notions in published work

10 votes

Circular, or missing, definition in set theory?

9 votes

Do $\mathbb{HP}^2\#\overline{\mathbb{HP}^2}$ and $\mathbb{OP}^2\#\overline{\mathbb{OP}^2}$ arise as sphere bundles over spheres?

9 votes

Why do infinite-dimensional vector spaces usually have additional structure?

9 votes

Euclid vs Eratosthenes

9 votes

The Arnold – Serre debate

8 votes

Any PL-homology-manifold is homotopy equivalent to a manifold

8 votes

Conformally flat manifold with zero scalar

8 votes

A remark of Connes on non-standard analysis

8 votes

Surfaces filled densely by a geodesic

8 votes

Is it possible to have a research career while checking the proof of every theorem that you cite?

1
2 3 4 5
7