We proved a multiplicity result for a nonlinear elliptic system in RN. The functional related to the system is strongly indefinite. We investigated the relation between the number of solutions and the topology of the set of the global maxima of the coefficients.
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Cent China Normal Univ, Dept Math, Wuhan 430079, Peoples R ChinaCent China Normal Univ, Dept Math, Wuhan 430079, Peoples R China
Peng, Shuangjie
Shuai, Wei
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Cent China Normal Univ, Dept Math, Wuhan 430079, Peoples R China
Chinese Univ Hong Kong, Inst Math Sci, Shatin, Hong Kong, Peoples R ChinaCent China Normal Univ, Dept Math, Wuhan 430079, Peoples R China
Shuai, Wei
Wang, Qingfang
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Wuhan Polytech Univ, Sch Math & Comp Sci, Wuhan 430023, Peoples R ChinaCent China Normal Univ, Dept Math, Wuhan 430079, Peoples R China