We consider a second order nonlinear differential equation with nonlocal (integral) condition. The spectrum of it differs essentially from the known ones.
Sergejeva, N. (2008). On nonlinear spectra for some nonlocal boundary value problems. Mathematical Modelling and Analysis, 13(1), 87-97. https://doi.org/10.3846/1392-6292.2008.13.87-97
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