Abstract
We study the existence of 2π-periodic positive solutions of the equation u + u = a()u3 where a() is a positive smooth 2π-periodic function. A priori estimates and sufficient conditions for the existence of solutions of the equation are established.
| Original language | English |
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| Pages (from-to) | 535-565 |
| Number of pages | 31 |
| Journal | Calculus of Variations and Partial Differential Equations |
| Volume | 41 |
| Issue number | 3-4 |
| DOIs | |
| State | Published - Jul 2011 |