图的λ<sub>４</sub>最优性和超级性的度条件

图的λ_４最优性和超级性的度条件

孟祥军, 高敬振

Degree Conditions for a Group to Be λ₄-Optimal and a Group to Be Super- λ₄

MENG Xiang-Jun, GAO Jing-Zhen

J4 . 2010, (2): 1 -7 .