LIAN Fuyun, . Multiple Solutions for A Class of SecondOrder Nonlinear Difference Boundary Value Problems[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2010,49(5):30-33.
LIAN Fuyun, . Multiple Solutions for A Class of SecondOrder Nonlinear Difference Boundary Value Problems[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2010,49(5):30-33.DOI:
Nonlinear difference equations have been widely studied in many fields such as computer science
economics
neural network
ecology
cybernetics
etc. Nonlinear difference boundary value problems have been studied by many various methods
such as the upper and lower solution method
fixed point theorems
and topological degree theory. Also
in recent years
the critical point theory has played an important role in dealing with the existence and multiple results for nonlinear difference boundary value problems. By using critical point theory
the existence of multiple solutions for a class of secondorder nonlinear difference boundary value problems is studied and a new sufficient condition is obtained
关键词
差分方程边值问题临界点多重解
Keywords
difference equationboundary value problemcritical pointmultiple solutions