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Meta
Tag Archives: Puzzle
En Passant III
Question: When you are sick in bed, can you do any mathematics? I just spent the past few weeks with a sinus infection and was completely unable to do anything productive, that is, apart from writing an NSF grant (which … Continue reading
Posted in Mathematics, Waffle
Tagged Akshay Venkatesh, Bilu, Bringmann, Dave Roberts, Harald Helfgott, Parent, Puzzle, QI, Rebolledo, Samir Siksek, Sickness, Zagier
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Exercise concerning quaternion algebras
Here’s a fun problem that came up in a talk by Jacob Tsimerman on Monday concerning some joint work with Andrew Snowden: Problem: Let \(D/\mathbf{Q}(t)\) be a quaternion algebra such that the specialization \(D_t\) splits for almost all \(t\). Then … Continue reading