共 9 条
[1]
COLLATZ L, 1948, EIGENWERT PROBLEME I, P305
[2]
COURANT R, 1953, METHODS MATH PHYSICS, V1, P41
[4]
INCE EL, 1944, ORDINARY DIFFERENTIA, P213
[5]
LANCASTER P, 1966, LAMBDA MATRICES VIBR, P28
[6]
MORSE PM, 1933, METHODS THEORETICAL, V2, P1001
[7]
MORSE PM, 1948, VIBRATION SOUND, P122
[8]
RAYLEIGH B, 1945, THEORY SOUND, V1, P113
[9]
TITCHMARSH EC, 1958, EIGENFUNCTION EXPA 2, P212