Results 21 to 30 of about 433 (35)

Canonical contact structures on some singularity links

, 2014
We identify the canonical contact structure on the link of a simple elliptic or cusp singularity by drawing a Legendrian handlebody diagram of one of its Stein fillings.
Akbulut, Bhupal, Bhupal, Bogomolov, Burak Ozbagci, Caubel, Ding, Ding, Durfee, Etgü, Gay, Gompf, Gompf, Honda, Korkmaz, Laufer, Lekili, Lisca, Mohan Bhupal, Neumann, Neumann, Némethi, Ohta, Pinkham, Popescu-Pampu, Seade   +25 more
core   +1 more source

Singularities of spherical surface in R4

Open Mathematics
In this article, we mainly study the geometric properties of spherical surface of a curve on a hypersurface Σ\Sigma in four-dimensional Euclidean space.
Liu Haiming, Hua Yuefeng, Li Wanzhen
doaj   +1 more source

Contact boundaries of hypersurface singularities and of complex polynomials

, 2003
We survey some recent results concerning the behaviour of the contact structure defined on the boundary of a complex isolated hypersurface singularity or on the boundary at infinity of a complex polynomial.Comment: 8 pages; to be published in the ...
Caubel, C., Tibar, M.
core   +2 more sources

Adapted complex tubes on the symplectization of pseudo-Hermitian manifolds

, 2010
Let $(M,\omega)$ be a pseudo-Hermitian space of real dimension $2n+1$, that is $\RManBase$ is a $\CR-$manifold of dimension $2n+1$ and $\omega$ is a contact form on $M$ giving the Levi distribution $HT(M)\subset TM$.
Tomassini, Giuseppe, Venturini, Sergio
core   +1 more source

A class of 3-dimensional contact metric manifolds [PDF]

, 2012
We classify the contact metric 3-manifolds that satisfy ||grad{\lambda}||=1 and \nabla_{{\xi}}{\tau}=2a{\tau}{\phi}.Comment: 12 pages ...
Erken, Irem Küpeli, Murathan, Cengizhan
core  

Trapped Reeb orbits do not imply periodic ones

, 2013
We construct a contact form on R^{2n+1}, n at least 2, equal to the standard contact form outside a compact set and defining the standard contact structure on all of R^{2n+1}, which has trapped Reeb orbits, including a torus invariant under the Reeb flow,
Geiges, Hansjörg, Röttgen, Nena, Zehmisch, Kai   +2 more
core   +1 more source

On symplectic fillings

, 2004
In this note we make several observations concerning symplectic fillings. In particular we show that a (strongly or weakly) semi-fillable contact structure is fillable and any filling embeds as a symplectic domain in a closed symplectic manifold. We also
Eliashberg, Eliashberg, Eliashberg, Eliashberg, Eliashberg, Giroux, John B Etnyre, Kronheimer, Lisca, Weinstein   +9 more
core   +4 more sources

On overtwisted, right-veering open books

, 2012
We exhibit infinitely many overtwisted, right-veering, non-destabilizable open books, thus providing infinitely many counterexamples to a conjecture of Honda-Kazez-Matic.
Lisca, Paolo
core   +1 more source

Multiple Sclerosis at Home Access (MAHA): An Initiative to Improve Care in the Community. [PDF]

Int J MS Care, 2019
Healey K, Zabad R, Young L, Lindner A, Lenz N, Stewart R, Charlton M.   +6 more
europepmc   +1 more source

A non-homogeneous, symmetric contact projective structure

Open Mathematics, 2014
Zalabová Lenka
doaj   +1 more source