Results 101 to 110 of about 76,662 (251)

Phenological strategies of Annona from deciduous forest of Chiapas, Mexico

open access: yesBotan‪ical Sciences, 2016
Background. Phenological descriptions of plant species are used to understand cycles of foliation, flowering and fruiting. These studies provide useful means for understanding the relationships between plants and their environment. Question. What are
Alma Rosa González-Esquinca   +3 more
doaj   +1 more source

Influence of fault rock foliation on fault zone permeability: The case of deeply buried arkosic sandstones (Gres d'Annot, southeastern France)

open access: yes, 2013
We describe the structure, microstructure, and petrophysical properties of fault rocks from two normal fault zones formed in low-porosity turbiditic arkosic sandstones, in deep diagenesis conditions similar to those of deeply buried reservoirs.
T. Cavailhes   +10 more
semanticscholar   +1 more source

Force-free foliations

open access: yesPhysical Review D, 2016
26 pages, 1 figure.
Compère, Geoffrey   +2 more
openaire   +5 more sources

The dual foliation of some singular Riemannian foliations

open access: yesDifferential Geometry and its Applications, 2017
final ...
openaire   +3 more sources

Positively curved Killing foliations via deformations

open access: yes, 2018
We show that a compact manifold admitting a Killing foliation with positive transverse curvature fibers over finite quotients of spheres or weighted complex projective spaces, provided that the singular foliation defined by the closures of the leaves has
Caramello Jr., Francisco C.   +1 more
core  

Holonomy pseudogroups as obstructions to equivalence of manifolds over the algebra of dual numbers

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2019
A smooth manifold over the algebra of dual numbers D (a D-smooth manifold) carries the canonical foliation whose leaves are affine manifolds. Extension of charts on a D-smooth manifold along leaf paths allows ones to associate with an immersed ...
A.A. Malyugina, V.V. Shurygin
doaj   +1 more source

On closed currents invariant by holomorphic foliations, I

open access: yes, 2012
We consider closed positive currents invariant by a singular holomorphic foliation on an algebraic surface.
Rebelo, Julio C.
core   +1 more source

Homotopy invariance of cohomology and signature of a riemannian foliation

open access: yes, 2017
We prove that any smooth foliation that admits a Riemannian foliation structure has a well-defined basic signature, and this geometrically defined invariant is actually a foliated homotopy invariant.
Habib, Georges, Richardson, Ken
core  

Foliations and global inversion [PDF]

open access: yesCommentarii Mathematici Helvetici, 2009
We consider topological conditions under which a locally invertible map admits a global inverse. Our main theorem states that a local diffeomorphism f: M → ℝ^n is bijective if and only if H_{n − 1}(M) = 0 and the pre-image of every ...
openaire   +3 more sources

Unfoldings of holomorphic foliations [PDF]

open access: yesPublicacions Matemàtiques, 1989
The objective of this paper is to give a criterium for an unfolding of a holomorphic foliation with singularities to be holomorphically trivial.
openaire   +6 more sources

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