New Spin ( 7 ) holonomy metrics admitting G 2 holonomy reductions and M-theory / IIA dualities


As is well known, when D6 branes wrap a special lagrangian cycle on a non compact CY 3-fold in such a way that the internal string frame metric is Kahler there exists a dual description, which is given in terms of a purely geometrical eleven dimensional background with an internal metric of G2 holonomy. It is also known that when D6 branes wrap a… (More)


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