By using potential well method, one threshold result of global existence and nonexistence of solution for each problem is obtained, and two known results are completed and improved.

 
  • 利用位勢井方法,對上述問(wèn)題各自得到了一個(gè)解整體存在與不存在的門(mén)檻結果,從而從實(shí)質(zhì)上補充和完善了已有的結果。
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