Author Archives: valuevar

About valuevar

I am a number theorist with side interests in combinatorics and group theory.

The ternary Goldbach conjecture

So now everybody knows why I was posting more and more rarely. I recently posted a proof of the ternary Goldbach conjecture: it was split into two articles – a new one on major arcs, and a new and improved … Continue reading

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Back to blogging: Akos, groups and Heaven’s Gate

I have had my hands full for quite a while. I intend to get back to blogging now — starting with a few short notes. First, as some of you may know, I recently posted and submitted a survey paper … Continue reading

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Alcázares, setas y fueros

As most readers of this blog know, I am spending a month in Madrid, lecturing on growth in groups and otherwise enjoying myself. Yesterday, a group of us went to Segovia: The city is notable for (a) its aqueduct, which … Continue reading

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Literature and synchronicity

On Thursday evening, I was ten minutes late to a reading of the poetry of Tomas Tranströmer. I was not the only one late; going first into the elevator, I noticed that the person going with me was Vargas Llosa. … Continue reading

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On being confused by one’s mother language

Abro una pagina del diccionario de la Real Academia y encuentro: carolo, cárolus, caromomia carón, carona, caroncharse, caroncho, caronchoso, caronjo, caroñoso (ojo: no carroñoso), caroquero, caroreño, carosiera, carosiero, carosis, carota. In other words, no recognizable word entre las mas caseras … Continue reading

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What I did on my summer vacation

Back in July, I spent some time in Goettingen. As most readers of this blog, it is an old university town with plenty of history – Gauss, Riemann, Hilbert and their friends all worked and lived there. There was a … Continue reading

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Back to the battle

I paused the blogging for a bit due to other commitments. To summarize the last few months: AGRA went well, I got a paper on three primes out, and, after the usual conference season, I am back in home ground. … Continue reading

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AGRA: school in Arithmetic, Groups and Analysis

It’s a pleasure to present (es un placer anunciar…) the website for AGRA. This is a two-week school (first half of April 2012) on number theory and associated fields. The place is Santiago, Chile; all courses will be given in … Continue reading

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Four squares: Jacobi, Ramanujan,…

What are the nicest proofs of Jacobi’s four-square theorem you know? (Constraint: I would like something that can be presented in two hours to a group of highly motivated students with a reasonably solid background in complex analysis but little … Continue reading

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Rio, al-, Ł and the machine

I am now in Rio, hosted by a very fine Brazilian mathematician who, in good Brazilian-football fashion, is universally known by his nickname. Portuguese has a way of coming across to Spanish speakers as being a very offbeat way of … Continue reading

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