A finiteness theorem for parabolic subgroups of fixed modality
نویسندگان
چکیده
منابع مشابه
A Finiteness Theorem for Subgroups of Sp(4,z)
This paper proves that there are only finitely many subgroups H of finite index in Sp(4,Z) such that the corresponding quotient H/H of the Siegel upper half space of rank two is not of general type.
متن کاملVector ultrametric spaces and a fixed point theorem for correspondences
In this paper, vector ultrametric spaces are introduced and a fixed point theorem is given for correspondences. Our main result generalizes a known theorem in ordinary ultrametric spaces.
متن کاملA finiteness theorem for hyperbolic 3-manifolds
We prove that there are only finitely many closed hyperbolic 3-manifolds with injectivity radius and first eigenvalue of the Laplacian bounded below whose fundamental groups can be generated by a given number of elements.
متن کاملA Finiteness Theorem for Polarized Manifolds
There are many previous finiteness theorems about diffeomorphism types in Riemannian geometry. Cheeger’s finiteness theorem asserts that given constants D, υ, and Λ, there are only finitely many n-dimensional compact differential manifoldX admitting Riemannian metric g such that diamg(X) 6 D, Volg(X) > υ and the sectional curvature |Sec(g)| 6 Λ. This theorem can be proved as a corollary of the ...
متن کاملFiniteness Results for Hilbert’s Irreducibility Theorem
Let k be a number field, Ok its ring of integers, and f(t,X) ∈ k(t)[X] be an irreducible polynomial. Hilbert’s irreducibility theorem gives infinitely many integral specializations t 7→ t̄ ∈ Ok such that f(t̄, X) is still irreducible. In this paper we study the set Redf (Ok) of those t̄ ∈ Ok with f(t̄, X) reducible. We show that Redf (Ok) is a finite set under rather weak assumptions. In particular...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Indagationes Mathematicae
سال: 1997
ISSN: 0019-3577
DOI: 10.1016/s0019-3577(97)83356-3