The Ramsey number for theta graph versus a clique of order three and four
نویسندگان
چکیده
For any two graphs F1 and F2, the graph Ramsey number r(F1, F2) is the smallest positive integer N with the property that every graph on at least N vertices contains F1 or its complement contains F2 as a subgraph. In this paper, we consider the Ramsey numbers for theta-complete graphs. We determine r(θn,Km) for m = 2, 3, 4 and n > m. More specifically, we establish that r(θn,Km) = (n− 1)(m− 1) + 1 for m = 3, 4 and n > m.
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ورودعنوان ژورنال:
- Discussiones Mathematicae Graph Theory
دوره 34 شماره
صفحات -
تاریخ انتشار 2014