Abstract
The Maldacena's conjecture or AdS/CFT predicts a duality between two apparently different theories and it has been one of the most studiest topics in high energy physics since its formulation. One of the versions of the conjecture is the duality between the theory of type II B superstrings in the background AdS^5 X S^5 and the theory of N=4 d=4 super-Yang-Mills. The superstring action in …