Author/Authors :
Xing Jian Jing، نويسنده , , Ming Yu، نويسنده ,
Abstract :
Motivated by superstring theories on AdS3, we construct spacetime superconformal algebras (SCAs) living on the AdS3 boundary in terms of the transversal physical degrees of freedom. The SCAs constructed are N=4 large, middle algebras, and N=3 algebra, corresponding to superstring theories on AdS3×S3×S3×S1, AdS3×S3×T4 and AdS3×(S3×S3×S1)/Z2 backgrounds, respectively.