The lifting problem for Galois representations / Negligible Galois cohomology

On the intrinsic geometry of horospheres in negative curvature / Some curious open manifolds

Area-minimizing integral currents: singularities and structure / When reason produces monsters while it is wide awake

Admissibility of uniformly bounded representations of $SL(2,R)$ on Hilbert spaces - What else do we know about uniformly bounded representations on Hilbert spaces?

Math Forum: Ricci Curvature, Fundamental Group and the Milnor Conjecture

Technical seminar: Structure and Regularity of Nonlinear Harmonic Maps

Structure and Regularity of Nonlinear Harmonic Maps