Erdõs regular graphs of even degree
نویسندگان
چکیده
In 1960, Dirac put forward the conjecture that r-connected 4critical graphs exist for every r ≥ 3. In 1989, Erdős conjectured that for every r ≥ 3 there exist r-regular 4-critical graphs. A method for finding r-regular 4-critical graphs and the numbers of such graphs for r ≤ 10 have been reported in [6, 7]. Results of a computer search for graphs of degree r = 12, 14, 16 are presented. All the graphs found are both r-regular and r-connected.
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عنوان ژورنال:
- Discussiones Mathematicae Graph Theory
دوره 27 شماره
صفحات -
تاریخ انتشار 2007