hep-th/9607112 USC-96/HEP-B4
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چکیده
The representation theory of the maximally extended superalgebra with 32 fermionic and 528 bosonic generators is developed in order to investigate non-perturbative properties of the democratic secret theory behind strings and other p-branes. The presence of Lorentz non-singlet central extensions is emphasized, their role for understanding up to 13 hidden dimensions and their physical interpretation as boundaries of p-branes is elucidated. The criteria for a new larger set of BPS-like non-perturbative states is given and the methods of investigation are illustrated with several explicit examples.
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v 1 1 0 O ct 1 99 6 hep - th / 9610074 CERN - TH / 96 - 277 USC - 96 / HEP - B 6 BLACK HOLE ENTROPY REVEALS A 12 th DIMENSION 1
The Beckenstein-Hawking black hole entropy in string theory and its generalizations , as expressed in terms of charges that correspond to central extensions of the supersymmetry algebra, has more symmetries than U-duality. It is invariant under transformations of the charges, involving a 12th (or 13th) " dimension ". This is an indication that the secret theory behind string theory has a supera...
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