Existence Problems for Homoclinic Solutions
نویسنده
چکیده
when a→−∞ and b→ +∞. The boundary value problems on compact intervals have been studied in numerous papers but the boundary value problems on noncompact intervals have been less studied. A first substantial approach of these problems, using functional methods are due to Kartsatos [8]. Last time, this type of results has been published in [2, 3, 4, 5, 6]. For problem (1.3), Mawhin obtained many existence results through topological degree theory; in [9, 10, 11] the reader can find the fundamental ideas of the
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