共 50 条
- [24] Asymptotic Lower Bounds for Eigenvalues of the Steklov Eigenvalue Problem with Variable Coefficients Applications of Mathematics, 2021, 66 : 1 - 19
- [27] UPPER AND LOWER BOUNDS OF WKB EIGENVALUES PROGRESS OF THEORETICAL PHYSICS, 1976, 56 (02): : 669 - 670
- [29] Schrodinger upper bounds to semirelativistic eigenvalues JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 2005, 38 (37): : 7997 - 8002