常見例句disconjugacy number 不共軛性數(shù)disconjugacy numbers 不共軛性數(shù)Keywords second-order nonlinear difference equation;critical point theory;periodic solution;boundary value problem;Mountain Pass Lemma;Link Theorem;Saddle Point Theorem;disconjugacy; 二堦非線性差分方程;臨界點理論;周期解;邊值問題;山路引理;環(huán)繞定理;鞍點定理;非共軛性; 返回 disconjugacy