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Bi-center Problem in a Class of Z2-equivariant Quintic Vector Fields |
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| Authors: | Hongwei Li Feng Li Pei Yu |
| Affiliation: | School of Mathematics and Statistics, Linyi University, Linyi, Shandong 276005, China,School of Mathematics and Statistics, Linyi University, Linyi, Shandong 276005, China and Department of Applied Mathematics, Western University, London, Ontario N6A 5B7, Canada |
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