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A posteriori error control in adaptive qualocation boundary element analysis for a logarithmic-kernel integral equation of the first kind. (English) Zbl 1042.65084

This study investigates a posteriori error estimators that are used in adaptive boundary element methods. The estimators are based on Sobolev-Slobodeckij norms on small overlapping domains of boundary elements. Two estimators are considered and their efficiency and reliability is investigated. Lower and upper bounds are derived theoretically and then confirmed by numerical experiments.

MSC:

65N15 Error bounds for boundary value problems involving PDEs
65R20 Numerical methods for integral equations
35J25 Boundary value problems for second-order elliptic equations
45E10 Integral equations of the convolution type (Abel, Picard, Toeplitz and Wiener-Hopf type)
65N38 Boundary element methods for boundary value problems involving PDEs
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