Erratum to: Int. J. Theor. Phys. (2012) 51:1762–1768 DOI 10.1007/s10773-011-1053-y

We regret that an initially typographical error in the equations, Eq. (15) of HangBin Sun (2012), has propagated through the paper. Corrections are as follows:

(15)
(17)
(18)
(19)
(23)
(24)
(26)
(27)
(28)

\(\lambda = \frac{C}{12\pi^{3}}\)” below Eq. (28) should be changed into “\(\lambda = \frac{C}{6\pi^{3}}\)”. Numbers following each equation are the equation numbers of HangBin Sun (2012).

The changes are minute and in no way alter the conclusions of the paper.