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History and philosophy of mathematics, biographies of mathematicians, mathematics education, recreational mathematics, communication of mathematics.

1 vote

When did coordinate plane "as we know it" come into play?

It's an interesting question. Conservatism about negative numbers as such continued indeed into the early decades of the 19th century. But that was mainly a philosophical position. Pedagogic conservat …
Charles Matthews's user avatar
4 votes
Accepted

Information about A. Aubry

I think it is Auguste Aubry. The L'Enseignement Mathématique volume is on archive.org, and there is an earlier paper in it on hyperbolic functions by Aubry. The material and location suggests a school …
Charles Matthews's user avatar
26 votes

Gauss's views on pure mathematics

Quotation from Gauss: "...the greatest thing is purely mathematical thinking: this is worth much more than the application of mathematics." In conversation in 1854, a few months before his death, th …
Charles Matthews's user avatar
0 votes

Why might André Weil have named Carl Ludwig Siegel the greatest mathematician of the 20th ce...

For Weil, the Mordell-Weil theorem; for Siegel, the theorem on integral points on curves (genus at least 1). Think about the use of abelian varieties here. Mordell-Weil is sort of about making Mordell …
2 votes

What was Galois theory like before Emil Artin?

Post-Artin, you could read about it in English! No, that's not fair, but few authors writing in English on the "theory of equations" handled it. An exception would be L. E. Dickson, and I looked at on …
Charles Matthews's user avatar
7 votes

At what point in history did it become impossible for a person to understand most of mathema...

At some point between Harald Bohr's foundation of the theory of almost periodic functions, and the major paper of van der Corput that J. E. Littlewood regarded as the most technical paper in the whole …
16 votes
0 answers
1k views

Galois theory timeline (II)

This question is a sequel. I structured the previous one around Emil Artin's classic treatment of Galois theory from the 1940s, though making clear some reservations of my own about whether Artin shou …
Charles Matthews's user avatar
36 votes
2 answers
4k views

Timeline of cohomology (1935 to 1938)

There was a recent question on intuitions about sheaf cohomology, and I answered in part by suggesting the "genetic" approach (how did cohomology in general arise?). For historical material specific t …
Charles Matthews's user avatar
7 votes

Why didn't Vladimir Arnold get the Fields Medal in 1974?

In 1974, also, Pierre Deligne had a Fields Medal "withheld", after his proof of the Weil conjectures. That was hypothesised to be prejudice against non-peer reviewed aspects of the proof. I wouldn't r …
2 votes

Who named it the Snake Lemma?

If you Google for "diagramme du serpent" it becomes plausible that it was a diagram in Cartan-Eilenberg first of all, before a lemma. Interesting example of how Bourbaki became the standard grad stude …
Charles Matthews's user avatar
14 votes

What is the situation with Hilbert's Fifth Problem?

http://en.wikipedia.org/wiki/Hilbert%27s_fifth_problem is a decent survey. In general in the discussion of "status" of the Hilbert problems, there are at least two recognisable routes. Route A is the …
Charles Matthews's user avatar
2 votes

Less-known conjectures of significant influence and the contrary

One can contrast Hilbert's 7th problem (http://en.wikipedia.org/wiki/Hilbert%27s_seventh_problem) on transcendence with his views on Fermat's last theorem. These are reported somewhere, namely that th …
Charles Matthews's user avatar
8 votes

In what ways did Leibniz's philosophy foresee modern mathematics?

My version, quickly, would be that he envisaged "points" that were abstractions. Whence "logical space" as came in first around 1900 (long discussion) as implied by Boolean algebra, which he also anti …
Charles Matthews's user avatar
3 votes

Heuristics for the Hodge Conjecture

Edited: One point is that Hodge's original version of the conjecture was wrong, and in a couple of ways. You do need rational coefficients (integral is too much to ask for, see ref below). Also a mor …
Charles Matthews's user avatar
13 votes

Gossip about Grothendieck and distributive lattices

It's a tendentious question, certainly. It might mean, if Bourbaki, let us say, had had more of an interest in lattice theory, that the French word for "lattice" of this kind would be more familiar at …

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