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系统科学与数学 2008
Positive Solutions of Fourth Order Singular Boundary Value Problems
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Abstract:
This paper is concerned with the existence of positive solutions for a class of fourth order singular boundary value problems:$$\left\{\aligned &u^{(4)}(t)=a(t)f(t,u(t),u'(t))+b(t)g(t,u(t),u'(t)),\q 0
