204 Brazilian Journal of Physics, vol. 35, no. 1, March, 2005
ERRATUM
On the Entropy of the Viana-Bray model,
J. R. L. de Almeida Braz. J. Phys.33, 892 (2003)
The eigenvalues for the solution of equation (7) should be written as
λ1=
1
p
and
λ2=
1
p−(1−Q) +
1 2
p+1 +p−1
in the longitudinal sector, and
λ3=
1
p−(1−Q),
and
λ4=
1
p−(1−Q)±
1 2
p+1 +p−
1
,
in the transversal sector.
These changes have no effect on the final results and conclusions. The details of the analysis leading to these eigenvalues may also be found in the work of Hase et al.[1] and in some of the references quoted by them.
