Research output: Contribution to journal › Article › peer-review
A New Non-Overlapping Domain Decomposition Method for a 3D Laplace Exterior Problem. / Sveshnikov, V. M.; Savchenko, A. O.; Petukhov, A. V.
In: Numerical Analysis and Applications, Vol. 11, No. 4, 01.10.2018, p. 346-358.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - A New Non-Overlapping Domain Decomposition Method for a 3D Laplace Exterior Problem
AU - Sveshnikov, V. M.
AU - Savchenko, A. O.
AU - Petukhov, A. V.
PY - 2018/10/1
Y1 - 2018/10/1
N2 - We propose a method for solving three-dimensional boundary value problems for Laplace’s equation in an unbounded domain. It is based on non-overlapping decomposition of the exterior domain into two subdomains so that the initial problem is reduced to two subproblems, namely, exterior and interior boundary value problems on a sphere. To solve the exterior boundary value problem, we propose a singularity isolation method. To match the solutions on the interface between the subdomains (the sphere), we introduce a special operator equation approximated by a system of linear algebraic equations. This system is solved by iterative methods in Krylov subspaces. The performance of the method is illustrated by solving model problems.
AB - We propose a method for solving three-dimensional boundary value problems for Laplace’s equation in an unbounded domain. It is based on non-overlapping decomposition of the exterior domain into two subdomains so that the initial problem is reduced to two subproblems, namely, exterior and interior boundary value problems on a sphere. To solve the exterior boundary value problem, we propose a singularity isolation method. To match the solutions on the interface between the subdomains (the sphere), we introduce a special operator equation approximated by a system of linear algebraic equations. This system is solved by iterative methods in Krylov subspaces. The performance of the method is illustrated by solving model problems.
KW - computation of integrals with singularities
KW - exterior boundary value problems
KW - iterative methods in Krylov subspaces
KW - non-overlapping decomposition
UR - http://www.scopus.com/inward/record.url?scp=85058296584&partnerID=8YFLogxK
U2 - 10.1134/S1995423918040079
DO - 10.1134/S1995423918040079
M3 - Article
AN - SCOPUS:85058296584
VL - 11
SP - 346
EP - 358
JO - Numerical Analysis and Applications
JF - Numerical Analysis and Applications
SN - 1995-4239
IS - 4
ER -
ID: 17896761