Composition operators on the Schwartz space
- Antonio Galbis 1
- Enrique Jordá 2
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1
Universitat de València
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2
Universidad Politécnica de Valencia
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ISSN: 0213-2230
Año de publicación: 2018
Volumen: 34
Número: 1
Páginas: 397-412
Tipo: Artículo
Otras publicaciones en: Revista matemática iberoamericana
Resumen
We study composition operators on the Schwartz space of rapidly decreasing functions. We prove that such a composition operator is never a compact operator and we obtain necessary or sufficient conditions for the range of the composition operator to be closed. These conditions are expressed in terms of multipliers for the Schwartz class and the closed range property of the corresponding operator considered in the space of smooth functions.