Multisummability of formal solutions for a family of generalized singularly perturbed moment partial differential equations

The notion of moment differentiation is extended to the set of generalized multisums of formal power series via an appropriate integral representation and accurate estimates of the moment derivatives. The main result is applied to characterize generalized multisummability of the formal solution to a...

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Detalles Bibliográficos
Autores: Lastra Sedano, Alberto|||0000-0002-4012-6471, Michalik, Slawomir, Suwinska, Maria
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universidad de Alcalá (UAH)
Repositorio:e_Buah Biblioteca Digital Universidad de Alcalá
Idioma:inglés
OAI Identifier:oai:ebuah.uah.es:10017/55158
Acceso en línea:http://hdl.handle.net/10017/55158
https://dx.doi.org/10.1007/s00025-022-01828-9
Access Level:acceso abierto
Palabra clave:Multisummability
Formal solution
Moment estimates
Moment derivatives
Moment differential equations
Singular perturbation
Matemáticas
Mathematics
Descripción
Sumario:The notion of moment differentiation is extended to the set of generalized multisums of formal power series via an appropriate integral representation and accurate estimates of the moment derivatives. The main result is applied to characterize generalized multisummability of the formal solution to a family of singularly perturbed moment differential equations in the complex domain, broadening widely the range of singularly perturbed functional equations to be considered in practice, such as singularly perturbed differential equations and singularly perturbed fractional differential equations.