Monthly Archives: October 2017

Schaefer and Stubley on Class Groups

I talked previously about work of Wake and Wang-Erickson on deformations of Eisenstein residual representations. In that post, I also mentioned a paper of Emmanuel Lecouturier who has also proved some very interesting theorems. Today, I wanted to talk about … Continue reading

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J’accuse!

I found the following documentary remarkable and quite interesting. Without offering here any opinion on its merits, I certainly give it credit for taking an unpopular position and sticking with it. This blog is no stranger to challenging perceived wisdom, … Continue reading

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Mathieu Magic

I previously mentioned that I once made (in a footnote) the false claim that for a 11-dimensional representation V of the Mathieu group M_12, the 120 dimensional representation Ad^0(V) was irreducible. I had wanted to write down representations W of … Continue reading

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Commuting

I found out a good way to describe how long my commute is: about three minutes more than the length of the second movement of Beethoven’s 9th (the greatest movement!) On the other hand, that measure proved inaccurate the very … Continue reading

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