Results 31 to 40 of about 221 (48)

Homoclinic points for convex billiards

open access: yes, 2013
In this paper we investigate some generic properties of a billiard system on a convex table. We show that generically, every hyperbolic periodic point admits some homoclinic orbit.Comment: 12 pages, 1 ...
Xia, Zhihong, Zhang, Pengfei
core   +1 more source

On Small Gaps in the Length Spectrum

open access: yes, 2016
We discuss upper and lower bounds for the size of gaps in the length spectrum of negatively curved manifolds. For manifolds with algebraic generators for the fundamental group, we establish the existence of exponential lower bounds for the gaps.
Dolgopyat, Dmitry, Jakobson, Dmitry
core   +1 more source

Homoclinic intersections of symplectic partially hyperbolic systems with 2D center

open access: yes, 2015
We study some generic properties of partially hyperbolic symplectic systems with 2D center. We prove that $C^r$ generically, every hyperbolic periodic point has a transverse homoclinic intersection for the maps close to a direct/skew product of an Anosov
Zhang, Pengfei
core  

On the first integral conjecture of Rene Thom

open access: yes, 2007
More that half a century ago R. Thom asserted in an unpublished manuscript that, generically, vector fields on compact connected smooth manifolds without boundary can admit only trivial continuous first integrals.
Cresson, Jacky   +2 more
core   +1 more source

Piecewise contractions defined by iterated function systems

open access: yes, 2014
Let $\phi_1,\ldots,\phi_n:[0,1]\to (0,1)$ be Lipschitz contractions. Let $I=[0,1)$, $x_0=0$ and $x_n=1$.
Nogueira, Arnaldo   +2 more
core   +1 more source

Two classes of ODE models with switch-like behavior. [PDF]

open access: yesPhysica D, 2013
Just W, Korb M, Elbert B, Young T.
europepmc   +1 more source

Comparative in vitro anti-hepatitis C virus activities of a selected series of polymerase, protease, and helicase inhibitors. [PDF]

open access: yesAntimicrob Agents Chemother, 2008
Paeshuyse J   +11 more
europepmc   +1 more source

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