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Bipartite graphs with the maximum sum of squares of degrees |
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| Authors: | Sheng-gui Zhang Chun-cao Zhou |
| Affiliation: | 1. Department of Applied Mathematics, Northwestern Polytechnical University, Xi’an, 710072, China 2. The State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an, 710049, China 3. AVIC, Chengdu Aircraft Design and Research Institute, Chengdu, 610041, China |
| Abstract: | In this paper we determine all the bipartite graphs with the maximum sum of squares of degrees among the ones with a given number of vertices and edges. |
| Keywords: | bipartite graphs sum of squares of degrees extremal graphs |
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