• Cho, Yeol-Je (Department of Mathematics Education and the RINS Gyeongsang National University) ;
  • He, Guang (Department of Mathematics Neijiang Normal University) ;
  • Huang, Nan-Jing (Department of Mathematics Sichuan University)
  • 투고 : 2008.07.03
  • 발행 : 2010.05.31


In this paper, by using the semi-order method, two new existence theorems of coupled quasi-solutions for a class of nonlinear operator equations in Banach spaces are proved under some suitable conditions.


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