Results 11 to 20 of about 59,064 (307)

Continuous leafwise harmonic functions on codimension one transversely isometric foliations

open access: yesProceedings of the American Mathematical Society, Series B, 2014
Let ℱ be a codimension one foliation on a closed manifold ℳ which admits a transverse dimension one Riemannian foliation. Then any continuous leafwise harmonic functions are shown to be constant on leaves.
Shigenori Matsumoto
doaj   +4 more sources

Foliation adjunction. [PDF]

open access: yesMath Ann
Abstract We present an adjunction formula for foliations on varieties and we consider applications of the adjunction formula to the cone theorem for rank one foliations and the study of foliation singularities.
Cascini P, Spicer C.
europepmc   +5 more sources

Logarithmic foliations [PDF]

open access: yesAnnales de la Faculté des sciences de Toulouse : Mathématiques, 2021
45 ...
Cerveau, Dominique, Neto, Alcides Lins
openaire   +4 more sources

Approximation of Foliations [PDF]

open access: bronzeCanadian Mathematical Bulletin, 1971
Let be two foliations on a Cr manifold M. We say and are Ck-conjugate if there exists a Ck diffeomorphism h:M→M such that h maps the leaves of onto the leaves of .
Maurice E. Cohen
openalex   +4 more sources

Examples of foliations with foliated geometric structures [PDF]

open access: yesPacific Journal of Mathematics, 1990
We present examples of foliated compact nilmanifolds, whose foliations are neither simple nor given by suspensions, admitting various foliated geometric structures. For example, we construct foliations which are: 1. transversally symplectic but not transversally Kähler, 2. transversally symplectic but not transversally holomorphic, 3.
Cordero, Luis A., Wolak, Robert A.
openaire   +4 more sources

Holomorphic foliations and deformations of the Hopf foliation [PDF]

open access: yesPacific Journal of Mathematics, 1984
A deformation theory for transversally holomorphic foliations is developed here and used to give an explicit description of the transver- sally holomorphic foliations near the "Hopf foliations" on odd dimen- sional spheres. Introduction. In (1) and (2) we began the study of the deformation theory of holomorphic foliations on a smooth compact manifold ...
Duchamp, T., Kalka, M.
openaire   +3 more sources

On ergodic foliations [PDF]

open access: bronzeErgodic Theory and Dynamical Systems, 1988
AbstractWe define an ergodic ℤ-foliation and show that it can be realized as a quotient space of the ‘covering space’. The covering space has two actions, T and S, where T is a ℤ-action, S is a map of order two, and S and T skew-commute; that is, STS = T−1.
Kyewon Park
openalex   +3 more sources

Stability of Foliations [PDF]

open access: yesTransactions of the American Mathematical Society, 1973
Let X be a compact manifold and let k be an integer. It is shown that the set of homeomorphism conjugacy classes of germs at X of foliations of codimension k and the set of homeomorphism conjugacy classes of (holonomy) representations of ∏ 1 ( X ) {\prod _1}(X)
Michael Shub, Harold I. Levine
openaire   +2 more sources

Foliated hyperbolicity and foliations with hyperbolic leaves [PDF]

open access: yesErgodic Theory and Dynamical Systems, 2018
Given a lamination in a compact space and a laminated vector field $X$ which is hyperbolic when restricted to the leaves of the lamination, we distinguish a class of $X$-invariant probabilities that describe the behavior of almost every $X$-orbit in every leaf, which we call Gibbs $u$-states. We apply this to the case of foliations in compact manifolds
Bonatti, Christian   +2 more
openaire   +5 more sources

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