Extremal Graphs for Two Vertex-Disjoint Copies of a Clique

作者：Chen, Wanfang; Lu, Changhong; Yuan, Long-Tu^*

来源：GRAPHS AND COMBINATORICS, 2022, 38(3): 67.

DOI：10.1007/s00373-022-02467-1

• Clique
• Hajnal and Szemered theorem
• Extremal graph

Applying a well-known result of Hajnal and Szemeredi, we determine the Turan number of two vertex-disjoint copies of a clique.