Abstract
We study geometric aspects of extensions of the supersymmetric standard model that exhibit a periodic
duality cascade. Via the holographic correspondence, the growth of the gauge group rank towards the UV is interpreted
as a gradual decompactification transition. We show that this class of models typically
develop a duality wall in the UV, and present an efficient method for estimating the hierarchy between
the on-set of the cascade and the formation of the wall.
As an illustrative example, we study the model introduced by Cascales, Saad and Uranga in [14],
which has an known geometric realization in terms of D-branes on an SPP/
3 singularity.
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