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Extreme values of the sum of squares of degrees of bipartite graphs |
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| Authors: | TC Edwin Cheng Shenggui Zhang Yongjun Du |
| Institution: | a Department of Logistics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China b China Flight Test Establishment, Xi’an, Shaanxi 710089, PR China c Department of Applied Mathematics, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, PR China d School of Science, Lanzhou University of Technology, Lanzhou, Gansu 730050, PR China |
| Abstract: | In this paper we determine the minimum and maximum values of the sum of squares of degrees of bipartite graphs with a given number of vertices and edges. |
| Keywords: | Degree squares Bipartite graphs Extreme values |
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