82 citations
- City University of New YorkUS5 papers
- Rutgers, The State University of New JerseyUS3 papers
- The Graduate Center, CUNYUS2 papers
- Aarhus UniversityDK1 paper
- Courant Institute of Mathematical SciencesUS1 paper
- Department of Biological SciencesBY1 paper
- Indiana UniversityUS1 paper
- Johannes Gutenberg University MainzDE1 paper
- New York UniversityUS1 paper
- Rütgers (Germany)DE1 paper
- University of LisbonPT1 paper
- Yale UniversityUS1 paper
Showing 2003Show all
3 papers · 1 filter
math.DS2003★ 1 cited
Almost isometric actions, property , and local rigidity
David Fisher, G. A. Margulis
Let be a discrete group with property of Kazhdan. We prove that any Riemannian isometric action of on a compact manifold is locally rigid. We also prove a more ge…
math.NT2003★ 2 cited
Modular symbols have a normal distribution
Yiannis N. Petridis, Morten Skarsholm Risager
We prove that the modular symbols appropriately normalized and ordered have a Gaussian distribution for all cofinite subgroups of SL_2(R). We use spectral deformations to study the…
math.DS2003
When is a group action determined by its orbit structure?
David Fisher, Kevin Whyte
We present a simple approach to questions of topological orbit equivalence for actions of countable groups on topological and smooth manifolds. For example, for any action of a cou…