Frederic Rochon

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math.DG2024

Asymptotic geometry at infinity of quiver varieties

Panagiotis Dimakis, Frédéric Rochon

Using an approach developed by Melrose to study the geometry at infinity of the Nakajima metric on the reduced Hilbert scheme of points on $C^{2}$ , we show that the Nakajima…

math.DG2024

On the growth of torsion in the cohomology of some arithmetic groups of $Q$ -rank one

Werner Mueller, Frédéric Rochon

Given a number field $F$ with ring of integers $O_{F}$ , one can associate to any torsion free subgroup of $SL (2, O_{F})$ of finite index a complet…

Asymptotic geometry at infinity of quiver varieties

On the growth of torsion in the cohomology of some arithmetic groups of Q-rank one

On the growth of torsion in the cohomology of some arithmetic groups of $Q$ -rank one