A generalization of a theorem of Mammana
Roberto Camporesi ; Antonio J. Di Scala
Colloquium Mathematicae, Tome 122 (2011), p. 215-223 / Harvested from The Polish Digital Mathematics Library
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We prove that any linear ordinary differential operator with complex-valued coefficients continuous in an interval I can be factored into a product of first-order operators globally defined on I. This generalizes a theorem of Mammana for the case of real-valued coefficients.

Publié le : 2011-01-01
EUDML-ID : urn:eudml:doc:283975 
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     title = {A generalization of a theorem of Mammana},
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     year = {2011},
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Roberto Camporesi; Antonio J. Di Scala. A generalization of a theorem of Mammana. Colloquium Mathematicae, Tome 122 (2011) pp. 215-223. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-cm122-2-6/