Planar lattices do not recover from forest fires

Duration: 41 mins 28 secs
Share this media item:
Embed this media item:


About this item
Image inherited from collection
Description: Manolescu, I (Université de Genève)
Thursday 23 April 2015, 14:00-15:00
 
Created: 2015-04-24 17:41
Collection: Random Geometry
Publisher: Isaac Newton Institute
Copyright: Manolescu, I
Language: eng (English)
 
Abstract: Co-authors: Demeter Kiss (University of Cambridge) and Vladas Sidoravicius (IMPA)

Self-destructive percolation with parameters p, delta is obtained by taking a site percolation configuration with parameter p, closing all sites belonging to the infinite cluster, then opening every site with probability delta, independently of the rest. Call theta(p,delta) the probability that the origin is in an infinite cluster in the configuration thus obtained. For two dimensional lattices, we show the existence of delta > 0 such that, for any p > p_c , theta(p,delta) = 0. This proves a conjecture of van den Berg and Brouwer, who introduced the model. Our results also imply the non-existence of the infinite parameter forest-fire model on planar lattices.
Available Formats
Format Quality Bitrate Size
MPEG-4 Video 640x360    1.93 Mbits/sec 602.11 MB View Download
WebM 640x360    515.38 kbits/sec 156.59 MB View Download
iPod Video 480x270    522.12 kbits/sec 158.57 MB View Download
MP3 44100 Hz 249.76 kbits/sec 75.95 MB Listen Download
Auto * (Allows browser to choose a format it supports)