# Article

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Keywords:
singular Dirichlet problem; $$-Laplacian; existence of smooth solution; lower and upper functions Summary: We provide sufficient conditions for solvability of a singular Dirichlet boundary value problem with$$-Laplacian $\BOF\unknown. ((u^{\prime }))^{\prime } = f(t, u, u^{\prime }), u(0) = A, \ u(T) = B, \BOF\unknown.$ where  is an increasing homeomorphism, $(\mathbb{R})=\mathbb{R}$, $(0)=0$, $f$ satisfies the Carathéodory conditions on each set $[a, b]\times \mathbb{R}^{2}$ with $[a, b]\subset (0, T)$ and $f$ is not integrable on $[0, T]$ for some fixed values of its phase variables. We prove the existence of a solution which has continuous first derivative on $[0, T]$.
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