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MULTIPLE PERIODIC SOLUTIONS OF SECOND-ORDER ORDINARY DIFFERENTIAL EQUATIONS ACROSS RESONANCE

  • Cai, Hua (College of Mathematics Jilin University) ;
  • Chang, Xiaojun (School of Mathematics and Statistics Northeast Normal University, College of Mathematics Jilin University) ;
  • Zhao, Xin (College of Information Technology Jilin Agricultural University)
  • Received : 2013.06.04
  • Published : 2014.09.30

Abstract

In this paper we study the existence of multiple periodic solutions of second-order ordinary differential equations. New results of multiplicity of periodic solutions are obtained when the nonlinearity may cross multiple consecutive eigenvalues. The arguments are proceeded by a combination of variational and degree theoretic methods.

Keywords

References

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