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## Hilbert’s heartbreak hotel

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A post by Nature is causing some ripples at Google+.

## 4 generations of mathematicians

By in History

Bourbaki’s death announcement mentions ‘Respectively their father, brother, son, grandson, great-grandson, and grand-cousin’ giving us 5 generations, among which 4 generations of Bourbakis.

## Noncommutative boundary to Langlands

Here’s the punchline : a large chunk of the Connes-Marcolli book Noncommutative Geometry, Quantum Fields and Motives can be read as an exploration of the noncommutative boundary to the Langlands program (at least for $GL_1$ and $GL_2$ over the rationals $\mathbb{Q}$).

## Bourbaki & Le Tour de France

By in Stories

During the 1952 summer-congress in Pelvoux-le-Poët, Bourbaki fervently followed the Tour de France, and was an avid supporter of one of the greatest cyclists ever: Fausto Coppi.

## Where is Fogas?

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A (reading) suggestion for Grothendieck-stalkers touring around small villages in the Ariège region, near Saint-Girons, in search of ‘another house’ : better bring along the Fogas Chronicles by Julia Stagg.

This time we will describe the points of the arithmetic site with Steinitz’ supernatural numbers and adele-classes.

## Bourbaki’s cause of death: May 68

By in History

In Bourbaki est mort, CQFD, Pierre Cartier asserts: “Yes, Bourbaki is dead. He was killed by May 68!”

## Who discovered the Leech lattice? (1)

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The Leech lattice was, according to wikipedia, ‘originally discovered by Ernst Witt in 1940, but he did not publish his discovery’ and it ‘was later re-discovered in 1965 by John Leech’. However, there is very little evidence to support this claim.

## The points of the arithmetic site

Now that Alain Connes’ talk at the IHES is online, giving hints to prove some of the statements of the arithmetic site, we can continue our story.