H. Boschi-filho et Nrf. Braga, Remark on the variational principle in the AdS/CFT correspondence for the scalar field, PHYS LETT B, 471(2-3), 1999, pp. 162-170
We discuss how the variational principle can be used as a criterion for cho
osing, among scalar field actions implying the same equation of motion, the
appropriate one for the AdS/CFT correspondence. (C) 1999 Published by Else
vier Science B.V. All rights reserved.