16-51 A. Lastra, S. Malek

On multiscale Gevrey and q-Gevrey asymptotics for some linear q-difference differential initial value Cauchy problems (811K, pdf) Jul 11, 16

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Abstract. We study the asymptotic behavior of the solutions related to a singularly perturbed q-difference-differential problem in the complex domain. The analytic solution can be splitted according to the nature of the equation and its geometry so that both, Gevrey and q-Gevrey asymptotic phenomena are observed and can be distinguished, relating the analytic and the formal solution. The proof leans on a two level novel version of Ramis-Sibuya theorem under Gevrey and q-Gevrey orders.

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