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On MTheory and the Symmetries of Type II String Effective Actions  Ashok Das
; Shibaji Roy
;  Date: 
9 May 1996  Journal:  Nucl.Phys. B482 (1996) 119141  Subject:  hepth  Abstract:  We study the ``ordinary’’ ScherkSchwarz dimensional reduction of the bosonic sector of the low energy effective action of a hypothetical Mtheory on $S^1 imes S^1 cong T^2$. We thus obtain the low energy effective actions of type IIA string theory in both ten and nine spacetime dimensions. We point out how to obtain the O(1, 1) invariance of the NSNS sector of the string effective action correctly in nine dimensions. We dimensionally reduce the type IIB string effective action on $S^1$ and show that the resulting nine dimensional theory can be mapped, purely from the bosonic consideration, exactly to the type IIA theory by an O(1, 1) or Buscher’s Tduality transformations. We then give a dynamical argument, in analogy with that for the type IIB theory in ten dimensions, to show how an Sduality in the type IIA theory can be understood from the underlying nine dimensional theory by compactifying Mtheory on a Tdual torus $ ilde {T}^2$.  Source:  arXiv, hepth/9605073  Services:  Forum  Review  PDF  Favorites 


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