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math.SP2013★ 1 cited
A priori bounds and existence of non-real eigenvalues of indefinite Sturm-Liouville problems
Jiangang Qi, Shaozhu Chen
The present paper gives a priori bounds on the possible non-real eigenvalues of regular indefinite Sturm-Liouville problems and obtains sufficient conditions for such problems to a…
math.SP2013★ 1 cited
Estimates on the non-real eigenvalues of regular indefinite Sturm-Liouville problems
Jussi Behrndt, Shaozhu Chen, Friedrich Philipp +1
Regular Sturm-Liouville problems with indefinite weight functions may possess finitely many non-real eigenvalues. In this note we prove explicit bounds on the real and imaginary pa…