Existence of Nonnegative and Nonpositive Solutions for Second Order Periodic Boundary Value Problems
نویسندگان
چکیده
منابع مشابه
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ژورنال
عنوان ژورنال: Journal of Differential Equations
سال: 2001
ISSN: 0022-0396
DOI: 10.1006/jdeq.2000.3995