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Static and dynamic epidemics on looped chains and looped trees
Vandewalle, Nicolas; Ausloos, Marcel
1996In Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 54 (4), p. 3499-3507
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Abstract :
[en] The dynamic epidemic model [N. Vandewalle and M. Ausloos, J. Phys. A 29, 309 (1996)] considers the growth of a cluster in a medium containing a fraction x of mobile "particles" that are pushed by a propagation front. This model is exactly solved here on various chains and trees that contain loops following an "evolution matrix" method. The exact value for the percolation threshold x(c) and the critical exponents are calculated for static and mobile particles, respectively. Surprisingly, the mobile character of the particles affects the values of the critical exponents on chains but not on trees. Thus there is a nonuniversal behavior for dynamic epidemics even on d=1 lattices.
Disciplines :
Physics
Author, co-author :
Vandewalle, Nicolas  ;  Université de Liège - ULiège > Département de physique > Physique statistique
Ausloos, Marcel ;  Université de Liège - ULiège > Département de physique > Physique statistique appliquée et des matériaux - S.U.P.R.A.S.
Language :
English
Title :
Static and dynamic epidemics on looped chains and looped trees
Publication date :
October 1996
Journal title :
Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
ISSN :
1063-651X
eISSN :
1095-3787
Publisher :
American Physical Society, College Park, United States - Maryland
Volume :
54
Issue :
4
Pages :
3499-3507 Part A
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 07 August 2009

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