On claw-free t-perfect graphs
On claw-free t-perfect graphs
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关于无爪 t 完美图
DOI:
10.1007/s10107-010-0436-9
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发表时间:
2012
影响因子:
2.7
通讯作者:
M. Stein
中科院分区:
文献类型:
--
作者:
H. Bruhn;M. Stein
A graph is calledt-perfect, if its stable set polytope is defined by non-negativity, edge and odd-cycle inequalities. We characterise the class of all claw-freet-perfect graphs by forbiddent-minors, and show that they are 3-colourable. Moreover, we determine the chromatic number of claw-freeh-perfect graphs and give a polynomial-time algorithm to compute an optimal colouring.