Results 11 to 20 of about 25,320 (97)

King post truss as a motif for internal structure of (meta)material with controlled elastic properties [PDF]

open access: yes, 2017
One of the most interesting challenges in the modern theory of materials consists in the determination of those microstructures which produce, at the macro-level, a class of metamaterials whose elastic range is many orders of magnitude wider than the one
Dell'Isola, Francesco   +3 more
core   +4 more sources

Complexity reduction of C-algorithm

open access: yes, 2010
The C-Algorithm introduced in [Chouikha2007] is designed to determine isochronous centers for Lienard-type differential systems, in the general real analytic case.
Bardet   +12 more
core   +3 more sources

A three-sphere swimmer for flagellar synchronization

open access: yes, 2013
In a recent letter (Friedrich et al., Phys. Rev. Lett. 109:138102, 2012), a minimal model swimmer was proposed that propels itself at low Reynolds numbers by a revolving motion of a pair of spheres. The motion of the two spheres can synchronize by virtue
Friedrich, Benjamin M., Polotzek, Katja
core   +1 more source

Asymptotics in a family of linked strip maps

open access: yes, 2014
We apply round-off to planar rotations, obtaining a one-parameter family of invertible maps of a two-dimensional lattice. As the angle of rotation approaches pi/2, the fourth iterate of the map produces piecewise-rectilinear motion, which develops along ...
Reeve-Black, Heather, Vivaldi, Franco
core   +1 more source

On the use of blow up to study regularizations of singularities of piecewise smooth dynamical systems in $\mathbb{R}^3$ [PDF]

open access: yes, 2014
In this paper we use the blow up method of Dumortier and Roussarie \cite{dumortier_1991,dumortier_1993,dumortier_1996}, in the formulation due to Krupa and Szmolyan \cite{krupa_extending_2001}, to study the regularization of singularities of piecewise ...
Benoît E.   +11 more
core   +3 more sources

Experimental results for the Poincar\'e center problem (including an Appendix with Martin Cremer)

open access: yes, 2005
We apply a heuristic method based on counting points over finite fields to the Poincar\'e center problem. We show that this method gives the correct results for homogeneous non linearities of degree 2 and 3.
Bothmer, Hans-Christian Graf v.
core   +1 more source

On the occupation times of Brownian excursions and Brownian loops

open access: yes, 2012
We study properties of occupation times by Brownian excursions and Brownian loops in two-dimensional domains. This allows for instance to interpret some Gaussian fields, such as the Gaussian Free Fields as (properly normalized) fluctuations of the total ...
Wu, Hao
core   +1 more source

Detection of the phase shift from a single quantized superconducting vortex

open access: yes, 2010
An Abrikosov vortex in a superconductor carries a flux quantum, Phi_0 = hc/2e, localized at its center, but induces a global 2pi phase rotation in the superconducting condensate. This long-range gauge field outside the area pierced by a magnetic field is
Golod, Taras   +2 more
core   +1 more source

Global surfaces of section for Reeb flows in dimension three and beyond

open access: yes, 2020
We survey some recent developments in the quest for global surfaces of section for Reeb flows in dimension three using methods from Symplectic Topology.
Hryniewicz, Umberto L.   +1 more
core   +1 more source

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