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Image inverse d'un $\cal D$-module et polygone de Newton (Inverse Image of a$\cal D$-module and Newton Polygon)
Published online by Cambridge University Press: 04 December 2007
Abstract
We show that, under conditions about the microcharacteristic variety of a coherent $\cal D$-module, the Cauchy problem is well-posed in the spaces of formal power series with Gevrey growth. We deduce that the filtration of the Irregularity Sheaf of a holonomic $\cal D$-module, which we defined in a previous work, is preserved under inverse image if some rather general geometric conditions are fullfilled.
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- © 2002 Kluwer Academic Publishers
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