A Simple Formula for the Generalized Spectrum of Second Order Self-Adjoint Differential Operators von Nielsen, Bjørn Fredrik, Strakoš, Zdeněk

Volltext

GENERALIZED SPECTRUM OF SECOND ORDER DIFFERENTIAL OPERATORS von Gergelits, Tomas, Nielsen, Bjorn Fredrik, Strakos, Zdenek

Volltext

Numerical approximation of the spectrum of self-adjoint operators in operator preconditioning von Gergelits, Tomáš, Nielsen, Bjørn Fredrik, Strakoš, Zdeněk

Volltext

On the computational complexity of the bidomain and the monodomain models of electrophysiology von Sundnes, Joakim, Nielsen, Bjørn Fredrik, Mardal, Kent Andre, Cai, Xing, Lines, Glenn Terje, Tveito, Aslak

Volltext

Laplacian Preconditioning of Elliptic PDEs: Localization of the Eigenvalues of the Discretized Operator von Gergelits, Tomáš, Mardal, Kent-André, Nielsen, Bjørn Fredrik, Strakoš, Zdeněk

Volltext

Computing Ischemic Regions in the Heart With the Bidomain Model-First Steps Towards Validation von Nielsen, B. F., Lysaker, M., Grottum, P.

Volltext

Robust preconditioners for PDE-constrained optimization with limited observations von Mardal, Kent-André, Nielsen, Bjørn Fredrik, Nordaas, Magne

Volltext

Penalty methods for the numerical solution of American multi-asset option problems von Nielsen, Bjørn Fredrik, Skavhaug, Ola, Tveito, Aslak

Volltext

MODIFIED TIKHONOV REGULARIZATION FOR IDENTIFYING SEVERAL SOURCES von Elvetun, Ole Loseth, Nielsen, Bjorn Fredrik

Volltext

PDE-Constrained Optimization with Local Control and Boundary Observations: Robust Preconditioners von Elvetun, Ole Løseth, Nielsen, Bjørn Fredrik

Volltext

The split Bregman algorithm applied to PDE-constrained optimization problems with total variation regularization von Elvetun, Ole Løseth, Nielsen, Bjørn Fredrik

Volltext

Analysis of the Minimal Residual Method Applied to Ill Posed Optimality Systems von Nielsen, Bjørn Fredrik, Mardal, Kent-Andre

Volltext

On the use of the resting potential and level set methods for identifying ischemic heart disease: An inverse problem von Nielsen, Bjørn Fredrik, Lysaker, Marius, Tveito, Aslak

Volltext

Optimal monodomain approximations of the bidomain equations von Nielsen, Bjørn Fredrik, Ruud, Tomas Syrstad, Lines, Glenn Terje, Tveito, Aslak

Volltext

Stability analysis of the inverse transmembrane potential problem in electrocardiography von Burger, Martin, Mardal, Kent-André, Nielsen, Bjørn Fredrik

Volltext

On the possibility for computing the transmembrane potential in the heart with a one shot method: An inverse problem von Nielsen, Bjørn Fredrik, Cai, Xing, Lysaker, Marius

Volltext

EFFICIENT PRECONDITIONERS FOR OPTIMALITY SYSTEMS ARISING IN CONNECTION WITH INVERSE PROBLEMS von NIELSEN, BjØrn Fredrik, MARDAL, Kent-Andre

Volltext

Identifying the source term in the potential equation with weighted sparsity regularization von Elvetun, Ole, Nielsen, Bjørn

Volltext

Towards a computational method for imaging the extracellular potassium concentration during regional ischemia von Nielsen, Bjørn Fredrik, Cai, Xing, Sundnes, Joakim, Tveito, Aslak

Volltext

An order optimal solver for the discretized bidomain equations von Mardal, Kent-Andre, Nielsen, Bjørn Fredrik, Cai, Xing, Tveito, Aslak

Volltext