Moment methods and formal power series
The author studies moment methods of summation and investigates some of their elementary important properties, especially with regard to summation of formal power series. A generalization of Ecalle's multisummability method is obtained. The author derives necessary and sufficient conditions for one moment method to be stronger than another one and applies this to several examples. Iterations of moment methods are also discussed.
scientific article; zbMATH DE number 1022294