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Extension of a new method for locating critical temperatures

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 Added by Pawel Sawicki
 Publication date 1997
  fields
and research's language is English
 Authors P. Sawicki




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We investigate recently proposed method for locating critical temperatures and introduce some modifications which allow to formulate exact criterion for any self-dual model. We apply the modified method for the Ashkin-Teller model and show that the exact result for a critical temperature is reproduced. We test also a two-layer Ising model for the presence of eventual self-duality.

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