Proceedings of the London Mathematical Society Advance Access originally published online on December 5, 2006
Proceedings of the London Mathematical Society 2007 94(2):421-442; doi:10.1112/plms/pdl016
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
© 2006 London Mathematical Society
Tightness for the interfaces of one-dimensional voter models
Département de Mathématiques
École Polytechnique Fédérale
1015 Lausanne
Switzerland
thomas.mountford{at}epfl.ch
samir.brahim{at}epfl.ch
glauco.valle{at}epfl.ch
Received 3 March 2005. Revision received 10 May 2006.
We show that for the voter model on {0, 1}
corresponding to a random walk with kernel p(·) and starting from unanimity to the right and opposing unanimity to the left, a tight interface between zeros and ones exists if p(·) has finite second moment but does not if p(·) fails to have finite moment of order
for some
< 2.