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Boundary value problems on the half-line with impulses and infinite delay. (English) Zbl 1009.34059
The following problem is considered $\begin{cases} (Lx)(t)+ f(t, x_t)= 0,\;t\neq t_k,\;\Delta x|_{t=t_k}= I_k(x_{t_k}),\;k= 1,2,\dots, m,\\ \lambda x(0)- \beta\lim_{t\to 0} p(t) x'(t)= a,\;\gamma x(\infty)+ \delta\lim_{t\to\infty} p(t) x'(t)= b,\\ x(t)\text{ is bounded on }[0,+\infty),\end{cases}\tag{1}$ where $$x_t$$ is defined by $$x_t(s)= \begin{cases} x(t+ s),\;t\geq t+ s\geq 0;\\ \phi(t+ s),\;-\infty< t+ s< 0,\end{cases}$$ $(Lx)(t)= {1\over p(t)} (p(t) x'(t))',\;p\in C([0, +\infty), R)\cap C^1(0,+\infty),\;p(t)> 0\quad\text{for }t\in (0,\infty),$ $$\Delta x|_{t_k}= \lim_{\varepsilon\to 0^+} [x(t_k+ \varepsilon)- x(t_k- \varepsilon)]$$ and $$\lambda$$, $$\beta$$, $$a$$, $$\gamma$$, $$\delta$$, $$b$$, $$\phi(t)$$ are given. The existence and uniqueness of a solution to problem (1) are proved.
Reviewer: A.Kh.Shamilov

##### MSC:
 34K10 Boundary value problems for functional-differential equations 34K45 Functional-differential equations with impulses
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