44 citations · 81 across the 8 of their papers we have counts for
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math.DS2011★ 6 cited
Singularity of projections of 2-dimensional measures invariant under the geodesic flow
Risto Hovila, Esa Järvenpää, Maarit Järvenpää +1
We show that on any compact Riemann surface with variable negative curvature there exists a measure which is invariant and ergodic under the geodesic flow and whose projection to t…
math.CA2011
Besicovitch-Federer projection theorem and geodesic flows on Riemann surfaces
Risto Hovila, Esa Järvenpää, Maarit Järvenpää +1
We extend the Besicovitch-Federer projection theorem to transversal families of mappings. As an application we show that on a certain class of Riemann surfaces with constant negati…