English
Related papers

Related papers: On parametric Gevrey asymptotics for some initial …

200 papers

The asymptotic behavior of a family of singularly perturbed PDEs in two time variables in the complex domain is studied. The appearance of a multilevel Gevrey asymptotics phenomenon in the perturbation parameter is observed. We construct a…

Complex Variables · Mathematics 2018-06-13 Alberto Lastra , Stephane Malek

The analytic and formal solutions to a family of singularly perturbed partial differential equations in the complex domain involving two complex time variables are considered. The analytic continuation properties of the solution of an…

Complex Variables · Mathematics 2025-06-03 Guoting Chen , Alberto Lastra , Stephane Malek

We study a family of partial differential equations in the complex domain, under the action of a complex perturbation parameter $\epsilon$. We construct inner and outer solutions of the problem and relate them to asymptotic representations…

Complex Variables · Mathematics 2019-04-11 Alberto Lastra , Stéphane Malek

We investigate Gevrey asymptotics for solutions to nonlinear parameter depending Cauchy problems with $2\pi$-periodic coefficients, for initial data living in a space of quasiperiodic functions. By means of the Borel-Laplace summation…

Analysis of PDEs · Mathematics 2014-03-19 Alberto Lastra , Stéphane Malek

This paper is a continuation a previous work of the authors where parametric Gevrey asymptotics for singularly perturbed nonlinear PDEs has been studied. Here, the partial differential operators are combined with particular Moebius…

Complex Variables · Mathematics 2018-07-20 Alberto Lastra , Stéphane Malek

We study a nonlinear initial value Cauchy problem depending upon a complex perturbation parameter $\epsilon$ with vanishing initial data at complex time $t=0$ and whose coefficients depend analytically on $(\epsilon,t)$ near the origin in…

Analysis of PDEs · Mathematics 2014-03-11 Alberto Lastra , Stéphane Malek

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…

Analysis of PDEs · Mathematics 2016-07-08 Alberto Lastra , Stephane Malek

A novel asymptotic representation of the analytic solutions to a family of singularly perturbed $q-$difference-differential equations in the complex domain is obtained. Such asymptotic relation shows two different levels associated to the…

Classical Analysis and ODEs · Mathematics 2024-08-23 Alberto Lastra , Stephane Malek

We consider a nonlinear singularly perturbed PDE leaning on a complex perturbation parameter $\epsilon$. The problem possesses an irregular singularity in time at the origin and involves a set of so-called moving turning points merging to 0…

Complex Variables · Mathematics 2017-07-11 Alberto Lastra , Stéphane Malek

The asymptotic behavior of the analytic solutions of a family of singularly perturbed q-difference-differential equations in the complex domain is studied. Different asymptotic expansions with respect to the perturbation parameter and to…

Complex Variables · Mathematics 2023-12-19 Alberto Lastra , Stéphane Malek

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…

Complex Variables · Mathematics 2014-07-09 Alberto Lastra , Stéphane Malek

We consider a family of linear singularly perturbed PDE relying on a complex perturbation parameter $\epsilon$. As in a former study of the authors (A. Lastra, S. Malek, Parametric Gevrey asymptotics for some nonlinear initial value Cauchy…

Complex Variables · Mathematics 2019-01-17 Alberto Lastra , Stephane Malek

We study a nonlinear initial value Cauchy problem depending upon a complex perturbation parameter $\epsilon$ whose coefficients depend holomorphically on $(\epsilon,t)$ near the origin in $\mathbb{C}^{2}$ and are bounded holomorphic on some…

Analysis of PDEs · Mathematics 2015-01-19 Alberto Lastra , Stephane Malek

A family of singularly perturbed q-difference-differential equations under the action of a small complex perturbation parameter is studied. The action of the formal monodromy around the origin is present in the equation, which suggests the…

Complex Variables · Mathematics 2023-06-29 Alberto Lastra , Stéphane Malek

We study a singularly perturbed PDE with cubic nonlinearity depending on a complex perturbation parameter $\epsilon$. This is the continuation of a precedent work by the first author. We construct two families of sectorial meromorphic…

Analysis of PDEs · Mathematics 2017-07-06 Alberto Lastra , Stéphane Malek

We study a family of singularly perturbed $q-$difference-differential equations in the complex domain. We provide sectorial holomorphic solutions in the perturbation parameter $\epsilon$. Moreover, we achieve the existence of a common…

Analysis of PDEs · Mathematics 2013-07-18 Alberto Lastra , Stéphane Malek

We consider a family of linear singularly perturbed Cauchy problems which combines partial differential operators and linear fractional transforms. We construct a collection of holomorphic solutions on a full covering by sectors of a…

Analysis of PDEs · Mathematics 2018-02-27 Alberto Lastra , Stéphane Malek

We investigate the large-time behavior of three types of initial-boundary value problems for Hamilton-Jacobi Equations with nonconvex Hamiltonians. We consider the Neumann or oblique boundary condition, the state constraint boundary…

Analysis of PDEs · Mathematics 2010-12-13 Guy Barles , Hiroyoshi Mitake

In this paper, we establish the existence of a 1-parameter family of spatially inhomogeneous radially symmetric classical self-similar solutions to a Cauchy problem for a semi-linear parabolic PDE with non-Lipschitz nonlinearity and trivial…

Analysis of PDEs · Mathematics 2020-01-17 Victoria Clark , John Christopher Meyer

We are concerned with the uniqueness of the asymptotic behavior of strong solutions of the initial-boundary value problem for general semilinear parabolic equations by the asymptotic behavior of these strong solutions on a finite set of an…

Analysis of PDEs · Mathematics 2010-06-07 Ryôhei Kakizawa
‹ Prev 1 2 3 10 Next ›