Tülü, Serdar2016-07-012016-07-012005http://hdl.handle.net/11693/29687Cataloged from PDF version of article.We give the definitions of finite volume Gibbs measure and limit Gibbs states. In one dimensional Ising model with arbitrary boundary conditions we calculate correlation functions in explicit way. In one dimension, conditions for uniqueness of Gibbs state are considered. We also discuss two dimensional Ising model.vi, 46 leavesEnglishinfo:eu-repo/semantics/openAccessHamiltonianThermodynamic LimitGibbs MeasuresIsing ModelPhase TransitionQA614.83 .T88 2005Hamiltonian systems.ThesisBILKUTUPB093101