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Zeitschriftenartikel:

G. Gantner, D. Praetorius, S. Schimanko:
"Adaptive isogeometric boundary element methods with local smoothness control";
Mathematical Models & Methods in Applied Sciences, 30 (2020), 2; S. 261 - 307.



Kurzfassung englisch:
In the frame of isogeometric analysis, we consider a Galerkin boundary element discretization of the hyper-singular integral equation associated with the 2D Laplacian.
We propose and analyze an adaptive algorithm which locally refines the boundary partition and, moreover, steers the smoothness of the NURBS ansatz functions across elements.
In particular and unlike prior work, the algorithm can increase and decrease the local smoothness properties and hence exploits the full potential of isogeometric analysis.
We prove that the new adaptive strategy leads to linear convergence with optimal algebraic rates. Numerical experiments confirm the theoretical results.
A short appendix comments on analogous results for the weakly-singular integral equation.


"Offizielle" elektronische Version der Publikation (entsprechend ihrem Digital Object Identifier - DOI)
http://dx.doi.org/10.1142/S0218202520500074


Erstellt aus der Publikationsdatenbank der Technischen Universitšt Wien.