Title: Modifit͡s︡irovannyĭ metod fazovykh funkt͡s︡iĭ v singuli͡a︡rnykh zadachakh kvantovoĭ fiziki na svi͡a︡zannye sostoi͡a︡nii͡a︡ chastit͡s︡
Subjects: Mathematics, Quantum theory, Sturm-Liouville equation, Quantum physics