ar X iv : m at h / 02 08 19 7 v 1 [ m at h . D G ] 2 6 A ug 2 00 2 Hyperbolic Rank of Products

ar X iv : m at h / 02 08 08 7 v 1 [ m at h . O A ] 1 1 A ug 2 00 2 WHEN ARE CROSSED PRODUCTS BY MINIMAL DIFFEOMORPHISMS ISOMORPHIC ?

We discuss the isomorphism problem for both C* and smooth crossed products by minimal diffeomorphisms. For C* crossed products, examples demonstrate the failure of the obvious analog of the Giordano-PutnamSkau Theorem on minimal homeomorphisms of the Cantor set. For smooth crossed products, there are many open problems.

ar X iv : m at h / 02 07 29 6 v 1 [ m at h . M G ] 3 1 Ju l 2 00 2 Products of hyperbolic metric spaces

Let (Xi, di), i = 1, 2, be proper geodesic hyperbolic metric spaces. We give a general construction for a " hyperbolic product " X1× h X2 which is itself a proper geodesic hyperbolic metric space and examine its boundary at infinity.

ar X iv : m at h / 05 02 57 3 v 7 [ m at h . A G ] 8 A ug 2 00 6 ON DEFORMATIONS OF FLAG MANIFOLDS WITH

Any (global) kähler deformation of a flag manifold F with b2 = 1 is biholomorphic to F .

ar X iv : m at h / 05 08 29 7 v 1 [ m at h . ST ] 1 6 A ug 2 00 5 CONVERGENCE OF ESTIMATORS IN LLS ANALYSIS

We establish necessary and sufficient conditions for consistency of estimators of mixing distribution in linear latent structure analysis.

ar X iv : m at h / 06 08 37 7 v 1 [ m at h . R T ] 1 5 A ug 2 00 6 ALGEBRAS OF DERIVED DIMENSION ZERO