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Meta
Tag Archives: Iwasawa Theory
It’s not a Lemma, it’s a Proposition!
Congratulations to Ken for winning the the Steele prize. I first met Ken on the Hearst mining circle. It was September of 1997, during the time I was applying for graduate schools. I was visiting Danny on the way to … Continue reading
Torsion in the cohomology of co-compact arithmetic lattices
Various authors (including Bergeron and Venkatesh) have shown that the cohomology of certain arithmetic groups have a lot of torsion. For example, if \(\Gamma\) is a co-compact arithmetic lattice in \(\mathrm{SL}_2(\mathbf{C})\), and \(\mathcal{L}\) is an acyclic local system, then \(\log … Continue reading
Posted in Mathematics
Tagged Akshay Venkatesh, Iwasawa Theory, Matthew Emerton, Nicolas Bergergon, Ouroboros, Poincare Duality, torsion
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