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Paper   IPM / P / 6816
School of Physics
  Title:   Topological DBI Actions and Nonlinear Instantons
  Author(s):  A. Imaanpur
  Status:   Published
  Journal: Phys. Lett. B
  No.:  53
  Vol.:  250
  Year:  2001
  Pages:   170-174
  Supported by:  IPM
We consider Euclidean D4 and D6-branes filling the whole R4 and R6 space, respectively. In both cases, with a constant background B-field turned on for D4-branes, we propose actions which are the same as the DBI actions up to some constant or total derivative terms. These extra terms allow us to write the action as a square of nonlinear instanton equations. As such, the actions can easily be supersymmetrized using the methods of topological field theory.

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