Proceedings of the Estonian Academy of Sciences, Physics and Mathematics |
Common terms and phrases
alpha-beta product approximate solution associated Legendre function Assumption A2 author(s chosen Comput conformal mapping consider const convex polygon defined discrete convergence discrete vortices method error estimate Estonian Acad Estonian Academy Publishers Estonian Mathematical Society fast Legendre transform fast multipole method fast polynomial interpolation finite fully discrete Galerkin method Gennadi Vainikko given GMRES grid Hilbert space ill-posed problems inequality instability factors iterative Kaariku Lavrentiev method Lemma Lifanov linear Math Mathematics methods 1-5 noise level November 2003 Abstract numerical solution obtain order optimal paper partition Pedas Phys piecewise polynomial collocation polynomial collocation method polynomial interpolation Proof real number Received 20 November regularization methods regularization parameter regularized approximation right-hand side Rule R2 shift singular integral equations singular Volterra integral solution of Eq source conditions split point stability Steklov function Tallinn Tautenhahn Theorem Tikhonov regularization University of Tartu Volterra integral equations weakly singular Volterra window functions