HYPERBOLIC VOLUME AND MOD p HOMOLOGY
... the hyperbolic n-manifold M as a quotient Hn /Γ, where Γ is a discrete, torsion-free group of isometries of Hn . For each maximal cyclic subgroup X of Γ and each λ > 0 one considers the set Zλ (X) consisting of all points of Hn that are moved a distance less than λ by some non-trivial element of X. ...
... the hyperbolic n-manifold M as a quotient Hn /Γ, where Γ is a discrete, torsion-free group of isometries of Hn . For each maximal cyclic subgroup X of Γ and each λ > 0 one considers the set Zλ (X) consisting of all points of Hn that are moved a distance less than λ by some non-trivial element of X. ...
Composition followed by differentiation between weighted Bergman-Nevanlinna spaces
... where X ≍ Y means that there is a positive constant C such that C −1 X ≤ Y ≤ CX. See [3] for more about weighted Bergman spaces and weighted Bergman-Nevanlinna spaces. By the subharmonicity of log(1 + |f (z)|), we have ||f ||A0λ (D) , z∈D ...
... where X ≍ Y means that there is a positive constant C such that C −1 X ≤ Y ≤ CX. See [3] for more about weighted Bergman spaces and weighted Bergman-Nevanlinna spaces. By the subharmonicity of log(1 + |f (z)|), we have ||f ||A0λ (D) , z∈D ...
Covering space
In mathematics, more specifically algebraic topology, a covering map (also covering projection) is a continuous function p from a topological space, C, to a topological space, X, such that each point in X has an open neighbourhood evenly covered by p (as shown in the image); the precise definition is given below. In this case, C is called a covering space and X the base space of the covering projection. The definition implies that every covering map is a local homeomorphism.Covering spaces play an important role in homotopy theory, harmonic analysis, Riemannian geometry and differential topology. In Riemannian geometry for example, ramification is a generalization of the notion of covering maps. Covering spaces are also deeply intertwined with the study of homotopy groups and, in particular, the fundamental group. An important application comes from the result that, if X is a ""sufficiently good"" topological space, there is a bijection between the collection of all isomorphism classes of connected coverings of X and the conjugacy classes of subgroups of the fundamental group of X.