منابع مشابه
Hyperpolar Homogeneous Foliations on Noncompact Symmetric Spaces
We introduce examples of hyperpolar actions on noncompact symmetric spaces that induce a regular foliation. We study some properties of these actions. Finally, we show that any hyperpolar action on a noncompact symmetric space that induces a regular foliation is one of these examples.
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متن کاملHyperpolar Homogeneous Foliations on Symmetric Spaces of Noncompact Type
Abstract. A foliation F on a Riemannian manifold M is hyperpolar if it admits a flat section, that is, a connected closed flat submanifold of M that intersects each leaf of F orthogonally. In this article we classify the hyperpolar homogeneous foliations on every Riemannian symmetric space M of noncompact type. These foliations are constructed as follows. Let Φ be an orthogonal subset of a set ...
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In this paper we study abelian varieties and of p-divisible groups in characteristic p. Even though a non-trivial deformation of an abelian variety can produce a non-trivial Galois-representation, say on the Tate-l-group of the generic fiber (in any characteristic), the geometric generic fiber has a “constant” Tate-l-group. The same phenomenon we encounter for the p-structure in positive charac...
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ژورنال
عنوان ژورنال: Annales Polonici Mathematici
سال: 1988
ISSN: 0066-2216,1730-6272
DOI: 10.4064/ap-48-3-269-273