Convergence of regular approximations to the spectra of singular fourth order Sturm-Liouville problems
Malcolm Brown, Leon Greenberg, Marco Marletta
Abstract
We prove some new results which justify the use of interval truncation as a means of regularising a singular fourth order Sturm-Liouville problem near a singular endpoint. Of particular interest are the results in the so called lim-3 case, which has no analogue in second order singular problems.
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