Downloads provided by UsageCounts
arXiv: 1511.03072
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.
Space of rapidly decreasing functions, Mathematics - Functional Analysis, 47B33, 46F05, 47A05, Composite function problem, FOS: Mathematics, Composition operator, MATEMATICA APLICADA, Functional Analysis (math.FA)
Space of rapidly decreasing functions, Mathematics - Functional Analysis, 47B33, 46F05, 47A05, Composite function problem, FOS: Mathematics, Composition operator, MATEMATICA APLICADA, Functional Analysis (math.FA)
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 12 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Top 10% |
| views | 43 | |
| downloads | 349 |

Views provided by UsageCounts
Downloads provided by UsageCounts