Zeitschrift für Analysis und ihre Anwendungen
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Published online: 1983-12-31
Singularly perturbed elliptic problems of second order with a singular lineH.-G. Roos and Lutz Tobiska (1) Technische Universität Dresden, Germany
(2) Otto-von-Guericke-Universität, Magdeburg, Germany
For some classes of singularly perturbed elliptic problems, in which the characteristics of the reduced problem are parallel or perpendicular to the singular line, uniform asymptotic approximations are constructed. The order of approximation depends on the behaviour of the coefficients of the reduced problem in the neighbourhood of the singular line and on the properties of the considered domain.
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Roos H.-G., Tobiska Lutz: Singularly perturbed elliptic problems of second order with a singular line. Z. Anal. Anwend. 2 (1983), 563-571. doi: 10.4171/ZAA/85