共 10 条
[1]
Cvetkovic D. M., 1980, SPECTRA GRAPHS THEOR
[2]
Kato T., 1966, PERTURBATION THEORY
[3]
NASHWILLIAMS CSJ, 1967, J COMBINATORIAL THEO, V3, P286
[4]
Schur J, 1911, J REINE ANGEW MATH, V140, P1
[5]
STONE MH, 1932, AMS COLL PUBL, V15
[6]
Taylor AE., 1958, INTRO FUNCTIONAL ANA
[7]
TORGASEV A, UNPUB SPECTRA INFINI
[8]
TORGASEV A, UNPUB NOTE CHARACTER
[9]
Weidmann J, 1980, LINEAR OPERATORS HIL
[10]
Wilson RJ., 1972, INTRO GRAPH THEORY