On the estimations of the small periodic eigenvalues
Citation
DİNİBÜTÜN, S., VELİEV, O. A. (2013). On the estimations of the small periodic eigenvalues. Abstract and Applied Analysis, Volume 2013, 12p. https://dx.doi.org/10.1155/2013/145967.Abstract
We estimate the small periodic and semiperiodic eigenvalues of Hill's operator with sufficiently differentiable potential by two different methods. Then using it we give the high precision approximations for the length of nth gap in the spectrum of Hill-Sehrodinger operator and for the length of nth instability interval of Hill's equation for small values of n. Finally we illustrate and compare the results obtained by two different ways for some examples.