1202.1158 (Stefan Adams et al.)

Finite range decomposition for families of gradient Gaussian measures    [PDF]

Stefan Adams, Roman Kotecký, Stefan Müller

Let a family of gradient Gaussian vector fields on $ \mathbb{Z}^d $ be given.
We show the existence of a uniform finite range decomposition of the
corresponding covariance operators, that is, the covariance operator can be
written as a sum of covariance operators whose kernels are supported within
cubes of diameters $ \sim L^k $. In addition we prove natural regularity for
the subcovariance operators and we obtain regularity bounds as we vary within
the given family of gradient Gaussian measures.

View original: http://arxiv.org/abs/1202.1158