Operators and Matrices · Volume 18, Issue 4 Eigenvalues of indefinite q-Sturm-Liouville problem with q-coupled boundary condition 18-51 Pages 845-853 DOI 10.7153/oam-2024-18-51 Downloads Short PDF Full PDF PNG Authors Xiaoxue Han Fu Sun Keywords Indefinite q-Sturm-Liouville problem non-real eigenvalues upper bounds q-coupled boundary condition Subject classes 39A13 34B05 34B24 34L15 47B50