Timeline for Differential operators acting on the Schwartz space
Current License: CC BY-SA 3.0
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Nov 6, 2015 at 8:11 | comment | added | Jochen Wengenroth | This seems to be a difficult question. You certainly know the Lojasiewicz-Hörmander theorem that multiplication with a polynomial (or analytic function) defines a closed range operator. This is already very deep. For constant coefficient differential operators you can use Fourier transformation but the general case seems to be far out of reach. | |
Nov 5, 2015 at 4:36 | history | asked | Pea | CC BY-SA 3.0 |