Formal structure of direct image of holonomic D-modules of exponential type
Algebraic Geometry
2007-06-13 v2 Complex Variables
Abstract
We compute formal invariants associated with the cohomology sheaves of the direct image of holonomic D-modules of exponential type. We also prove that every formal C[[t]]<\partial_t>-modules is isomorphic, after a ramification, to a germ of formalized direct image of analytic D-module of exponential type.
Keywords
Cite
@article{arxiv.math/0604134,
title = {Formal structure of direct image of holonomic D-modules of exponential type},
author = {C. Roucairol},
journal= {arXiv preprint arXiv:math/0604134},
year = {2007}
}
Comments
19 pages, 5 figures, supported by a fellowship of the Deutsche Forschungsgemeinschaft. Revised version