AMS-IMS-SIAM Joint Summer Research Conference in the Mathematical Sciences on Group Actions on Manifolds (1983 : University of Colorado), issuing body.
Providence, Rhode Island : American Mathematical Society, [1985]
1985
International Conference on Algebraic Topology (2002 : Northwestern University), issuing body.
Providence, Rhode Island : American Mathematical Society, [2004]
2004
Workshop on Interactions between Hyperbolic Geometry, Quantum Topology and Number Theory (2009 : Columbia University), issuing body.
Providence, Rhode Island : American Mathematical Society, [2011]
2011