%0 Journal Article
%A Lozano Imízcoz, María Teresa
%A Montesinos Amilibia, José María
%T On the degeneration of some 3-manifold geometries via unit groups of quaternion algebras
%D 2015
%@ 1578-7303
%U https://hdl.handle.net/20.500.14352/24152
%X A two parameter continuous family of three-dimensional Lie groups with a left invariant Riemannian metric is defined. Each of these Lie groups is the unit group of a quaternion algebra. All the possible left invariant Riemannian structures in the Heisenberg group appear as limit cases. The degeneration of some Thurston’s 3-manifold geometries are studied in this framework. Among other interesting degenerations, the degeneration spherical-Nil-(Formula presented.) is obtained.
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