An efficient finite element method and error analysis for eigenvalue problem of Schrödinger equation with an inverse square potential on spherical domain

Advances in Continuous and Discrete Models

Theory and Modern Applications

Table 6 The first four eigenvalues for \(l=2\) and different h with \(a=0\)

h	\(\lambda _{2h}^{1}\)	\(\lambda _{2h}^{2}\)	\(\lambda _{2h}^{3}\)	\(\lambda _{2h}^{4}\)
1/64	33.539386696208	83.321688069218	152.883872499399	242.450993494860
1/128	33.536292906786	83.275738174388	152.683074749736	241.875210146000
1/256	33.535519115145	83.264247113685	152.632869196580	241.731293670130
1/512	33.535325645709	83.261374124815	152.620317436233	241.695316468978
1/1024	33.535277277012	83.260655863631	152.617179473073	241.686322289850