Results 71 to 80 of about 76,662 (251)

On Some Transverse Geometrical Structures of Lifted Foliation to Its Conormal Bundle

open access: yesThe Scientific World Journal, 2015
We consider the lift of a foliation to its conormal bundle and some transverse geometrical structures associated with this foliation are studied. We introduce a good vertical connection on the conormal bundle and, moreover, if the conormal bundle is ...
Cristian Ida, Alexandru Oană
doaj   +1 more source

Geometric properties of the Minkowski operator

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
This article is about Minkowski difference of sets, which is one of the Minkowski operators. The necessary and sufficient conditions for the existence of the Minkowski difference of given regular polygons in the plane were derived. The method of finding
M.Sh. Mamatov   +3 more
doaj   +1 more source

On the uniqueness of the contact structure approximating a foliation [PDF]

open access: yes, 2013
According to a theorem of Eliashberg and Thurston, a C-2-foliation on a closed 3-manifold can be C-0-approximated by contact structures unless all leaves of the foliation are spheres.
T. Vogel
semanticscholar   +1 more source

Controle químico da ferrugem do cafeeiro (Coffea arabica L.) e seus efeitos na produção e preservação do enfolhamento Practices of coffee rust control related to yield and leaves retention

open access: yesCiência e Agrotecnologia, 2004
Objetivou-se com este trabalho um melhor ajuste do controle da ferrugem do cafeeiro (Coffea arabica L.) durante a fa-se de pré-colheita e verificar os seus efeitos sobre a produção e preservação do enfolhamento. O trabalho foi desenvolvido em uma lavoura
Rodrigo Luz da Cunha   +2 more
doaj   +1 more source

Foliations on modular curves

open access: yes, 2016
It is proved, that a foliation on a modular curve given by the vertical trajectories of holomorphic differential corresponding to the Hecke eigenform is either the Strebel foliation or the pseudo-Anosov foliation.Comment: to appear Bulletin of the ...
F Diamond   +5 more
core   +1 more source

Pseudo-automorphisms with no invariant foliation [PDF]

open access: yes, 2013
We construct an example of a birational transformation of a rational threefold for which the first and second dynamical degrees coincide and are $>1$, but which does not preserve any holomorphic (singular) foliation.
Eric Bedford   +2 more
semanticscholar   +1 more source

Open book foliation [PDF]

open access: yesGeometry & Topology, 2014
47 pages, 34 figures, accepted by Geometry and Topology. Title, abstract, expositions have been changed. The last section of Version 1 is now included in another paper "Visualizing overtwisted discs in open books" (arXiv:1310.6404)
Ito, Tetsuya, Kawamuro, Keiko
openaire   +4 more sources

Classical and Quantum Dynamics on Orbifolds

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
We present two versions of the Egorov theorem for orbifolds. The first one is a straightforward extension of the classical theorem for smooth manifolds.
Yuri A. Kordyukov
doaj   +1 more source

Dimension Distortion by Sobolev Mappings in Foliated Metric Spaces

open access: yesAnalysis and Geometry in Metric Spaces, 2013
We quantify the extent to which a supercritical Sobolev mapping can increase the dimension of subsets of its domain, in the setting of metric measure spaces supporting a Poincaré inequality. We show that the set of mappings that distort the dimensions of
Balogh Zoltán M.   +2 more
doaj   +1 more source

Global Geometry of Bayesian Statistics

open access: yesEntropy, 2020
In the previous work of the author, a non-trivial symmetry of the relative entropy in the information geometry of normal distributions was discovered. The same symmetry also appears in the symplectic/contact geometry of Hilbert modular cusps. Further, it
Atsuhide Mori
doaj   +1 more source

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