Decoupling via Scale-based Approximations of Limited Efficacy

Abstract

We consider the decoupling theory of a broad class of $C^5$ surfaces $\mathbb{M} \subset \mathbb{R}^3$ lacking planar points. In particular, our approach also applies to surfaces which are not graphed by mixed homogeneous polynomials. The study of $\mathbb{M}$ furnishes opportunity to recast iterative linear decoupling in a more general form. Here, Taylor-based analysis is combined with efforts to build a library of canonical surfaces (non-cylindrical in general) by which $\mathbb{M}$ may be approximated for decoupling purposes. The work presented may be generalized to the consideration of other surfaces not addressed.