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Michael Bächtold's user avatar
Michael Bächtold's user avatar
Michael Bächtold's user avatar
Michael Bächtold
  • Member for 14 years, 6 months
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10 Questions

Score Activity Newest Views
41 votes
5 answers
3k views

Are submersions of differentiable manifolds flat morphisms?

31 votes
5 answers
4k views

Is there a mathematically precise definition of turbulence for solutions of Navier-Stokes?

27 votes
5 answers
3k views

Formalizations of the idea that something is a function of something else?

23 votes
1 answer
3k views

Was Jacobi the first to notice the ambiguity in the partial derivatives notation? And did anyone object to his fix?

21 votes
2 answers
2k views

Status of proof by contradiction and excluded middle throughout the history of mathematics?

21 votes
5 answers
9k views

Can an integral equation always be rewritten as a differential equation?

16 votes
5 answers
4k views

When did the abuse of notation $y=y(x)$ start?

8 votes
1 answer
625 views

Are there other dualities on finite vector spaces besides the canonical one?

5 votes
1 answer
352 views

Are all splittings of the normal bundle to a submanifold locally isomorphic?

2 votes
0 answers
49 views

Is there an established name for bi-module morphisms that swap the module structures?