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Paper   IPM / Physic / 7920
School of Physics
  Title:   Extensions of the AdS_5xS^5 and Plane-wave Superalgebras and Their Realization in Tiny Graviton Matrix Theory
1.  M. Ali-Akbari
2.  M.M. Sheikh-Jabbari
3.  M. Torabian
  Status:   Published
  Journal: JHEP
  Vol.:  03
  Year:  2006
  Pages:   065
  Supported by:  IPM
In this paper we consider all possible consistent extensions of the AdS5xS5 superalgebra, psu(2,2|4), to incorporate brane charges by introducing both bosonic and fermionic (non)central extensions. We study the Inonu-Wigner contraction of the extended psu(2,2|4) under the Penrose limit to obtain the most general consistent extension of the plane-wave superalgebra and compare these extensions with the possible BPS (flat or spherical) brane configurations in the plane-wave background. We give an explicit realization of these extensions in terms of the Tiny Graviton Matrix Theory (TGMT) [hep-th/0406214] which is the 0+1 dimensional gauge theory conjectured to describe the DLCQ of strings on the AdS5xS5 and/or the plane-wave background.

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