A mathematical procedure is described whereby the radius of convergence of a Taylor series can be increased through the inclusion of complex poles in a rational approximation. Computer results show that this technique is quite independent of the asymptotic limit of the power series and only depends on the positions of the singularities. Aside from the applications in one variable, this method vastly improves perturbative solutions to symplectic, dynamical mappings in many dimensions by removing resonances in the complex plane
32 pages, 7 figures, 8 tablesInternational audienceThe simplicity and the efficiency of a quasi-anal...
It is known that, for any simply connected proper subdomain Ω of the complex plane and any point ζ i...
In this thesis, the reader will be made aware of methods for finding power series solutions to ordin...
Let Ω be a simply connected proper subdomain of the complex plane and z0 be a point in Ω. It is know...
This paper proposes a new method of convergence acceleration of series expansion of complex function...
We analyze the problem of global reconstruction of functions as accurately as possible, based on par...
A battery of techniques is discussed for exploring the analytic structure of the solution of a physi...
AbstractLet Ω be a simply connected proper subdomain of the complex plane and z0 be a point in Ω. It...
The analytic continuation of power series is an old problem attacked by various methods, a notable o...
We deal with a method of enhanced convergence for the approximation of analytic functions. This meth...
Abstract: We consider analytical systems of ODEs with a real or complex time. Integration ...
Abstract. The convergence of a Fourier series on an interval can be interpreted naturally as the con...
We apply singularity analysis in complex time to investigate the solutions of a dynamical system of ...
Complex numbers are a fundamental tool for applied mathematics and many engineering applications suc...
In our previous paper [1] we considered the simplest power series solution of the Painleve-I equatio...
32 pages, 7 figures, 8 tablesInternational audienceThe simplicity and the efficiency of a quasi-anal...
It is known that, for any simply connected proper subdomain Ω of the complex plane and any point ζ i...
In this thesis, the reader will be made aware of methods for finding power series solutions to ordin...
Let Ω be a simply connected proper subdomain of the complex plane and z0 be a point in Ω. It is know...
This paper proposes a new method of convergence acceleration of series expansion of complex function...
We analyze the problem of global reconstruction of functions as accurately as possible, based on par...
A battery of techniques is discussed for exploring the analytic structure of the solution of a physi...
AbstractLet Ω be a simply connected proper subdomain of the complex plane and z0 be a point in Ω. It...
The analytic continuation of power series is an old problem attacked by various methods, a notable o...
We deal with a method of enhanced convergence for the approximation of analytic functions. This meth...
Abstract: We consider analytical systems of ODEs with a real or complex time. Integration ...
Abstract. The convergence of a Fourier series on an interval can be interpreted naturally as the con...
We apply singularity analysis in complex time to investigate the solutions of a dynamical system of ...
Complex numbers are a fundamental tool for applied mathematics and many engineering applications suc...
In our previous paper [1] we considered the simplest power series solution of the Painleve-I equatio...
32 pages, 7 figures, 8 tablesInternational audienceThe simplicity and the efficiency of a quasi-anal...
It is known that, for any simply connected proper subdomain Ω of the complex plane and any point ζ i...
In this thesis, the reader will be made aware of methods for finding power series solutions to ordin...