Stokes filtered sheaves and differential-difference modules

Abstract

We introduce the notion of Stokes filtered quasi-local systems. It is proved that the category of Stokes filtered quasi-local systems is abelian. We also give a geometric way to construct Stokes filtered quasi-local systems, which describe the asymptotic behavior of certain classes of solutions to some differential-difference modules.

arXiv comment56 pages, some errors and typos are fixed