The Hadwiger number of an infinite graph

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The Hadwiger number of an infinite graph. (English). Mathematica Slovaca, vol. 26 (1976), issue 2, pp. 153-157

MSC: 05C15, 05C99 | MR 0427146 | Zbl 0326.05105

References:

[1] ORE O.: Theory of Graphs. Providence 1962. MR 0150753 | Zbl 0105.35401

[2] ВИЗИНГ В. Г.: Некоторые нерешенные задачи в теории графов. Успехи мат. наук 23, 1968, 117-134. MR 0240000 | Zbl 1099.01025

[3] ZELINKA B.: On Hadwiger number of a graph. Časop. pěst. mat. 100, 1975, 155 to 159. MR 0396348 | Zbl 0301.05127

[4] ZELINKA B.: Hadwiger numbers of finite graphs. Mat Čas. (to appear). MR 0427145 | Zbl 0324.05120

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