Abstract

AbstractIt shall be shown that for every n, \documentclass{article}\usepackage{amssymb}\pagestyle{empty}\begin{document}$k \in \mathbb {N}$\end{document} with n ⩽ k < 2n, there exist real symmetric differential expressions M of order 2n with nonempty essential spectrum such that d(M) = k. © 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call