Multigrid conformal mapping via the Szegő kernel.
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Lee, Barry, Trummer, Manfred R. (1994)
ETNA. Electronic Transactions on Numerical Analysis [electronic only]
Shi, Zhongci, Xu, Xuejun (2001)
Computational Methods in Applied Mathematics
Jitka Křížková, Petr Vaněk (1994)
Applications of Mathematics
An algorithm for using the preconditioned conjugate gradient method to solve a coarse level problem is presented.
H. Schippers (1985)
Numerische Mathematik
Ronald H.W. Hoppe (1986)
Numerische Mathematik
Huckle, Thomas, Staudacher, Jochen (2002)
ETNA. Electronic Transactions on Numerical Analysis [electronic only]
Junping Wang, P.S. Vassilevski (1992)
Numerische Mathematik
Petr Vaněk (1994)
Applications of Mathematics
One method for computing the least eigenvalue of a positive definite matrix of order is described.
Martikainen, Janne, Rossi, Tuomo, Toivanen, Jari (2003)
ETNA. Electronic Transactions on Numerical Analysis [electronic only]
Wolfgang Dahmen, Angela Kunoth (1992)
Numerische Mathematik
Xuejun Zhang (1992)
Numerische Mathematik
Hughes Hallett, A.J. (1984)
International Journal of Mathematics and Mathematical Sciences
Paola F. Antonietti, Blanca Ayuso (2008)
ESAIM: Mathematical Modelling and Numerical Analysis
In this paper we introduce and analyze some non-overlapping multiplicative Schwarz methods for discontinuous Galerkin (DG) approximations of elliptic problems. The construction of the Schwarz preconditioners is presented in a unified framework for a wide class of DG methods. For symmetric DG approximations we provide optimal convergence bounds for the corresponding error propagation operator, and we show that the resulting methods can be accelerated by using suitable Krylov space solvers. A discussion...
Josselin Garnier (2013/2014)
Séminaire Laurent Schwartz — EDP et applications
We consider sensor array imaging with the purpose to image reflectors embedded in a medium. Array imaging consists in two steps. In the first step waves emitted by an array of sources probe the medium to be imaged and are recorded by an array of receivers. In the second step the recorded signals are processed to form an image of the medium. Array imaging in a scattering medium is limited because coherent signals recorded at the receiver array and coming from a reflector to be imaged are weak and...
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