1/4 BPS solutions in massive IIA supergravity
نویسنده
چکیده
We construct four kinds of 1/4 BPS solutions in massive IIA supergravity corresponding to D8-D0-F1, D8-D2, D8-D4 and D8-D6-NS5 systems. They include many known solutions as special cases. D8-D2 and D8-D4 solutions are represented by harmonic functions as usual, while the other two by solutions of non-linear differential equations. Because these four solutions can be argued in almost identical way, we mainly focus on the D8-D6-NS5 systems. We first find D6-NS5 solutions with uniform mass parameters. After that, we introduce D8-branes as domain walls by pasting two solutions with different values of the mass parameter. We also discuss boundary conditions and supersymmetry on domain walls. ∗[email protected]
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