Sequence with K1, K2, Kn, Kn+1 mutually tangent circles
نویسندگان
چکیده
منابع مشابه
Vertex-Disjoint Copies of K1 + (K1 ∪K2) in Graphs
Let S denote the graph obtained from K4 by removing two edges which have an endvertex in common. Let k be an integer with k ≥ 2. Let G be a graph with |V (G)| ≥ 4k and σ2(G) ≥ |V (G)|/2 + 2k− 1, and suppose that G contains k vertex-disjoint triangles. In the case where |V (G)| = 4k+2, suppose further that G K4t+3 ∪ K4k−4t−1 for any t with 0 ≤ t ≤ k − 1. Under these assumptions, we show that G c...
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ژورنال
عنوان ژورنال: Mathematica Moravica
سال: 2008
ISSN: 1450-5932,2560-5542
DOI: 10.5937/matmor0802035s