4 papers
Compound Krylov subspace methods for parametric linear systems
Antti Autio, Antti Hannukainen
In this work, we propose a reduced basis method for efficient solution of parametric linear systems. The coefficient matrix is assumed to be a linear matrix-valued function that is…
Distributed solution of Laplacian eigenvalue problems
Antti Hannukainen, Jarmo Malinen, Antti Ojalammi
The purpose of this article is to approximately compute the eigenvalues of the symmetric Dirichlet Laplacian within an interval . A novel domain decomposition Ritz method, p…
Inverse heat source problem and experimental design for determining iron loss distribution
Antti Hannukainen, Nuutti Hyvönen, Lauri Perkkiö
Iron loss determination in the magnetic core of an electrical machine, such as a motor or a transformer, is formulated as an inverse heat source problem. The sensor positions insid…
Efficient solution of symmetric eigenvalue problems from families of coupled systems
Antti Hannukainen, Jarmo Malinen, Antti Ojalammi
Efficient solution of the lowest eigenmodes is studied for a family of related eigenvalue problems with common block structure. It is assumed that the upper diagonal bl…