On holomorphic foliations admitting invariant CR manifolds
نویسندگان
چکیده
We study holomorphic foliations of codimension $k\geq 1$ on a complex manifold $X$ dimension $n+k$ from the point view exceptional minimal set conjecture. For $n\geq 2$ we show in particular that if normal bundle $N_{\mathcal{F}}$ is Griffiths positive, then foliation does not admit compact invariant complete intersection $k$ smooth real hypersurfaces $X$.
منابع مشابه
Foliations on hypersurfaces in holomorphic symplectic manifolds
Let Y be a hypersurface in a 2n-dimensional holomorphic symplectic manifold X. The restriction σ|Y of the holomorphic symplectic form induces a rank one foliation on Y . We investigate situations where this foliation has compact leaves; in such cases we obtain a space of leaves Y/F which has dimension 2n − 2 and admits a holomorphic symplectic form.
متن کاملApproximately Holomorphic Geometry for Projective Cr Manifolds
For compact CR manifolds of hypersurface type which embed in complex projective space, we show for all k large enough the existence of linear systems of O(k), which when restricted to the CR manifold are generic in a suitable sense. In general these systems are constructed using approximately holomorphic geometry, but for strictly C-convex hypersurfaces generic degree one pencils are obtained v...
متن کاملStrongly Fillable Contact Manifolds and J–holomorphic Foliations
We prove that every strong symplectic filling of a planar contact manifold admits a Lefschetz fibration over a disk that restricts to any given planar open book at the boundary. It follows that strongly fillable planar contact structures are also Stein fillable. Using similar methods, involving foliations by J–holomorphic curves, we construct a Lefschetz fibration over the annulus for any stron...
متن کاملInvariant Foliations near Normally Hyperbolic Invariant Manifolds for Semiflows
Let M be a compact C1 manifold which is invariant and normally hyperbolic with respect to a C1 semiflow in a Banach space. Then in an -neighborhood of M there exist local C1 center-stable and center-unstable manifolds W cs( ) and W cu( ), respectively. Here we show that W cs( ) and W cu( ) may each be decomposed into the disjoint union of C1 submanifolds (leaves) in such a way that the semiflow...
متن کاملInvariant Submanifolds of Kenmotsu Manifolds Admitting Quarter Symmetric Metric Connection
The object of this paper is to study invariant submanifolds M of Kenmotsu manifolds M̃ admitting a quarter symmetric metric connection and to show that M admits quarter symmetric metric connection. Further it is proved that the second fundamental forms σ and σ with respect to LeviCivita connection and quarter symmetric metric connection coincide. Also it is shown that if the second fundamental f...
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: Annali della Scuola normale superiore di Pisa. Classe di scienze
سال: 2022
ISSN: ['0391-173X', '2036-2145']
DOI: https://doi.org/10.2422/2036-2145.201911_002