Man'ko Stepan Stepanovych. Asymptotic expansions of spectra for differential operators of the second and fourth order with singular coefficients
: к.ф.-м.н. :
spec.. 01.01.02 - Диференційні рівняння :
presented. 2011-09-15; popup.evolution: .;
Ivan Franko National University of Lviv. – ,
0411U004648.
Updated: 2026-11-08
