String junctions on backgrounds with a positively charged orientifold plane
نویسنده
چکیده
By means of the heterotic/type IIB duality, we study properties of junctions on backgrounds with a positively charged orientifold seven-plane and D-branes, which are expected to give seven dimensional Sp(r) gauge theories. We give a modified BPS condition for the junctions and show that it reproduces the adjoint representation of the Sp(r) group. ∗[email protected]
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تاریخ انتشار 1999