Abstract
General local half-BPS solutions in M-theory, which have SO(2, 2) × SO(4) × SO(4) symmetry and are asymptotic to AdS7 × S4, were constructed in exact form by the authors in [arXiv:0806.0605]. In the present paper, suitable regularity conditions are imposed on these local solutions, and corresponding globally well-defined solutions are explicitly constructed. The physical properties of these solutions are analyzed, and interpreted in terms of the gravity duals to extended 1+1-dimensional half-BPS defects in the 6-dimensional CFT with maximal supersymmetry.
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