Bounded and L 2 harmonic forms on universal covers
نویسندگان
چکیده
منابع مشابه
Isometries, rigidity and universal covers
The goal of this paper is to describe all closed, aspherical Riemannian manifolds M whose universal covers M̃ have have a nontrivial amount of symmetry. By this we mean that Isom(M̃) is not discrete. By the well-known theorem of Myers-Steenrod [MS], this condition is equivalent to [Isom(M̃) : π1(M)] = ∞. Also note that if any cover of M has a nondiscrete isometry group, then so does its universal ...
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ژورنال
عنوان ژورنال: Geometric And Functional Analysis
سال: 1998
ISSN: 1016-443X,1420-8970
DOI: 10.1007/s000390050057