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hep-th2002
Plane Waves and Vacuum Interpolation
Guillermo A. Silva
A 1/2-BPS family of time dependent plane wave spacetimes which give rise to exactly solvable string backgrounds is presented. In particular a solution which interpolates between Mi…
hep-th2000
Born-Infeld action and Supersymmetry (in spanish)
Guillermo A. Silva
In the thesis we analize different problems related to the supersymmetric extension of the Dirac-Born-Infeld action. In chapter 2 we introduce the DBI action and show how it appear…