20 citations · 48 across the 28 of their papers we have counts for
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On parametric -Gevrey asymptotic expansions in two levels for some linear partial -difference-differential equations
Alberto Lastra, Stephane Malek
A novel asymptotic representation of the analytic solutions to a family of singularly perturbed difference-differential equations in the complex domain is obtained. Such asympt…
On the multiple-scale analysis for some linear partial -difference and differential equations with holomorphic coefficients
Thomas Dreyfus, Alberto Lastra, Stéphane Malek
The analytic and formal solutions of certain family of -difference-differential equations under the action of a complex perturbation parameter is considered. The previous study…
On q-asymptotics for linear q-difference-differential equations with Fuchsian and irregular singularities
Alberto Lastra, Stephane Malek, Javier Sanz
We consider a Cauchy problem for some family of q-difference-differential equations with Fuchsian and irregular singularities, that admit a unique formal power series solution in t…
On the generalized Riemann-Hilbert problem with irregular singularities
A. A. Bolibruch, S. Malek, C. Mitschi
We give sufficient conditions, on data including the monodromy representation, the Stokes matrices and the Poincare ranks at prescribed singularities, to solve the generalized Riem…