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arXiv · 1407.2008

Multi-level Gevrey solutions of singularly perturbed linear partial differential equations

Alberto Lastra·Stéphane Malek
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Abstract

We study the asymptotic behavior of the solutions related to a family of singularly perturbed linear partial differential equations in the complex domain. The analytic solutions obtained by means of a Borel-Laplace summation procedure are represented by a formal power series in the perturbation parameter. Indeed, the geometry of the problem gives rise to a decomposition of the formal and analytic solutions so that a multi-level Gevrey order phenomenon appears. This result leans on a Malgrange-Sibuya theorem in several Gevrey levels.

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Alberto Lastra, Stéphane Malek. 2014-07-08. Multi-level Gevrey solutions of singularly perturbed linear partial differential equations. https://arxiv.org/abs/1407.2008

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