Journal of Mathematical Inequalities · Volume 17, Issue 1 The bounds of eigenvalue for complex singular boundary value problems 17-09 Pages 127-139 DOI 10.7153/jmi-2023-17-09 Downloads Short PDF Full PDF PNG Authors Fu Sun Xiaoxue Han Keywords perturbation of Legendre eigenvalue problem dissipative operators limit-circle a priori bounds Subject classes 34B05 34B09 34L15