Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Equivalence of two thermostatistical formalisms based on the
  Havrda&Charvat-Daroczy-Tsallis entropies   We show that the latest thermostatistical formalism based on the Havrda &
Charvat-Dar\'oczy-Tsallis entropy $S_q [ \rho ] = (q-1)^{-1}(1- tr (\rho^q))$
proposed by Tsallis, Mendes and Plastino is {\em equivalent} to the first one
proposed by Tsallis in 1988. Here, equivalent means: {\em the ``equilibrium''
state predicted by either formalism using $q$ leads to the same expectation
values for all observables as that predicted by the other formalism using
$1/q$''}. We also point out once again that the basic property of {\em
transitivity of equilibrium} (e.g., the $0^{th}$ Law of Thermodynamics) fails
in these formalisms.

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The categories of this paper are: q-bio
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The categories of this paper are: nucl-th
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The categories of this paper are: ao-sci
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-alg
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The categories of this paper are: stat
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The categories of this paper are: bayes-an
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The categories of this paper are: physics
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The categories of this paper are: chem-ph
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The categories of this paper are: supr-con
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The categories of this paper are: solv-int
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The categories of this paper are: atom-ph
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The categories of this paper are: math
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The categories of this paper are: comp-gas
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The categories of this paper are: gr-qc
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The categories of this paper are: astro-ph