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Formal structure of direct image of holonomic $${mathcal{D}}$$ -modules of exponential type |
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| Authors: | Céline Roucairol |
| Affiliation: | (1) Lehrstuhl VI für Math., University of Mannheim, A5 6, 68161 Mannheim, Germany |
| Abstract: | We compute formal invariants associated with the cohomology sheaves of the direct image of holonomic  -modules of exponential type. We also prove that every formal  -modules is isomorphic, after a ramification, to a germ of formalized direct image of analytic  -module of exponential type. |
| Keywords: | KeywordHeading" >Mathematics Subject Classification (2000) 32S40 32C38 34M35 |
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