P. Caputo and Y. Velenik
A note on wetting transition for gradient fields
(29K, Latex 2e)

ABSTRACT.  We prove existence of a wetting transition for two types of gradient 
fields: 1) Continuous SOS models in any dimension and 2) Massless 
Gaussian model in two dimensions. Combined with a recent result showing 
the absence of such a transition for Gaussian models above two 
dimensions by Bolthausen et al, this shows in particular that 
absolute-value and quadratic interactions can give rise to completely 
different behaviors.