Volume 84, Number 5, December 2008
|Number of page(s)||6|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||16 December 2008|
Pinning controllability of asymmetrical weighted scale-free networks
College of Physics and Electronic Engineering, Guangxi Normal University - Guilin 541004, China
2 Department of Electronic Engineering, City University of Hong Kong - Hong Kong SAR, China
Corresponding author: firstname.lastname@example.org
Accepted: 29 October 2008
This letter studies the pinning controllability of asymmetrical weighted scale-free networks, in which every individual node is a chaotic Lorenz system. The selective pinning scheme, which gives the control priority to those nodes with largest numbers of connections, is adopted. Study shows that a dynamical network of this type can be controlled via selective pinning only when the proportion p of the controlled nodes exceeds a critical value pc; and the network pinning controllability is enhanced as p increases for . This study also reveals the effects of the weights and the topologies of this type of networks on their pinning controllability, showing that pinning controllability of a network can be improved with an asymmetrical weight distribution, where the couplings from older nodes to younger ones are dominant, with a larger average connectivity or with a more heterogeneous connection distribution.
PACS: 89.75.Hc – Networks and genealogical trees / 05.45.Gg – Control of chaos, applications of chaos / 05.45.Xt – Synchronization; coupled oscillators
© EPLA, 2008
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.