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Doctoral Thesis
DOI
https://doi.org/10.11606/T.45.2013.tde-27052013-192003
Document
Author
Full name
Estefano Alves de Souza
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2013
Supervisor
Committee
Galves, Jefferson Antonio (President)
Collet, Pierre
Marchetti, Domingos Humberto Urbano
Neves, Eduardo Jordao
Oliveira, Roberto Imbuzeiro Moraes Felinto de
Title in Portuguese
Simulação perfeita e aproximações de alcance finito em sistemas de spins com interações de longo alcance
Keywords in Portuguese
Acoplamento
Modelo de Ising
Simulação Perfeita
Sistemas Markovianos de Partículas
Abstract in Portuguese
Nosso objeto de estudo são os sistemas de spins com interações de longo alcance; em particular, estamos interessados em sistemas cuja probabilidade invariante é o modelo de Ising em A^S, onde A = {-1, 1} é o espaço de spins e S = Z^d é o espaço de sítios. Apresentamos dois resultados originais que são consequências da aplicação de algoritmos de simulação perfeita e de acoplamento no contexto da construção deste tipo de sistemas e de suas respectivas probabilidades invariantes.
Title in English
Perfect simulation and finite-range approximations in spin systems with long-range interactions
Keywords in English
Coupling
Interacting Particle Systems
Ising Model
Perfect Simulation
Abstract in English
Our object of interest are spin systems with long-range interactions. As a special case, we are interested in systems whose invariant measure is the Ising model on A^S, where A = {-1, 1} is the space of spins and S = Z^d is the space of sites. We present two original results that are byproducts of the application of Perfect Simulation and Coupling algorithms in the context of the construction of these spin systems and their respective invariant measures.
 
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TESE.pdf (550.51 Kbytes)
Publishing Date
2013-05-29
 
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