Abstract
We consider D3-branes at an orbifolded conifold whose
horizon X5 resolves into a smooth Einstein manifold which joins
several copies of 
1,1. We describe in details the
resolution of the singular horizon X5 and describe different
types of two-cycles appearing in the resolution. For a large number
of D3 branes, the AdS/CFT conjecture becomes a duality between type
IIB string theory on AdS5 × X5 and the 
= 1
field theory living on the D3 branes. We study the fractional branes
as small perturbations of the string background and we reproduce the
logarithmic flow of field theory couplings by studying fluxes of NS-NS
and R-R two forms through different 2-cycles of the resolved horizon.