29 citations · 125 across the 29 of their papers we have counts for
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math.GT2013
Fundamental groups of finite volume, bounded negatively curved 4-manifolds are not 3-manifold groups
Grigori Avramidi, T. Tam Nguyen Phan, Yunhui Wu
We study noncompact, complete, finite volume, Riemannian 4-manifolds with sectional curvature . We prove that cannot be a 3-manifold group. A classical theorem…
math.GT2013
Parabolic isometries of visible CAT(0) spaces and metrics on moduli space
Yunhui Wu
We show that the translation length of any parabolic isometry on a complete semi-uniformly visible CAT(0) space is always zero. As a consequence, we will classify the isometries on…