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Perturbations of a Class of Ordinary Differential Expressions Preserving the Essential Spectrum and the Nullities
Marie Redina Mumpar-Victoria
Abstract
Excerpt
Perturbation is used to enlargen a class of differential expressions for which the essential spectrum and the nullities can be classified.
Perturbation is used to enlargen a class of differential expressions for which the essential spectrum and the nullities can be classified.
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