User profiles for A. Tveito

Aslak Tveito

Professor, Simula Research Laboratory
Verified email at simula.no
Cited by 4792

[BOOK][B] Computing the electrical activity in the heart

…, GT Lines, X Cai, BF Nielsen, KA Mardal, A Tveito - 2007 - books.google.com
The heart is a fantastic machine; during a normal lifetime it beats about 2.5 billion times and
pumps 200.000 tons of blood through an enormous system of vessels extending 160.000 …

[PDF][PDF] Penalty and front-fixing methods for the numerical solution of American option problems

BF Nielsen, O Skavhaug, A Tveito - Journal of Computational …, 2002 - researchgate.net
Article 4 Page 1 In this paper we introduce two methods for the efficient and accurate numerical
solution of Black–Scholes models of American options: a penalty method and a front-…

Metabolically driven maturation of human-induced-pluripotent-stem-cell-derived cardiac microtissues on microfluidic chips

…, J Serrano, M Snuderl, A Stahl, A Tveito… - Nature biomedical …, 2022 - nature.com
The immature physiology of cardiomyocytes derived from human induced pluripotent stem
cells (hiPSCs) limits their utility for drug screening and disease modelling. Here we show that …

[BOOK][B] Introduction to partial differential equations: a computational approach

A Tveito, R Winther - 2004 - books.google.com
Mathematics is playing an ever more important role in the physical and biological sciences,
provoking a blurring of boundaries between scientific disciplines and a resurgence of …

On the computational complexity of the bidomain and the monodomain models of electrophysiology

…, KA Mardal, X Cai, GT Lines, A Tveito - Annals of biomedical …, 2006 - Springer
The bidomain model, coupled with accurate models of cell membrane kinetics, is generally
believed to provide a reasonable basis for numerical simulations of cardiac electrophysiology…

Mathematical models and numerical methods for the forward problem in cardiac electrophysiology

…, P Grottum, AJ Pullan, J Sundnes, A Tveito - … and Visualization in …, 2003 - Springer
The purpose of this article is to give an overview of the forward problem of cardiac
electrophysiology. The relevant models are derived and the mathematical problem formulated. …

Numerical solution of the bidomain equations

…, M Hanslien, GT Lines, A Tveito - … Transactions of the …, 2009 - royalsocietypublishing.org
Knowledge of cardiac electrophysiology is efficiently formulated in terms of mathematical
models. However, most of these models are very complex and thus defeat direct mathematical …

An operator splitting method for solving the bidomain equations coupled to a volume conductor model for the torso

J Sundnes, GT Lines, A Tveito - Mathematical biosciences, 2005 - Elsevier
In this paper we present a numerical method for the bidomain model, which describes the
electrical activity in the heart. The model consists of two partial differential equations (PDEs), …

[HTML][HTML] An evaluation of the accuracy of classical models for computing the membrane potential and extracellular potential for neurons

A Tveito, KH Jæger, GT Lines, Ł Paszkowski… - Frontiers in …, 2017 - frontiersin.org
Two mathematical models are part of the foundation of Computational neurophysiology; (a)
the Cable equation is used to compute the membrane potential of neurons, and, (b) volume-…

[HTML][HTML] Penalty methods for the numerical solution of American multi-asset option problems

BF Nielsen, O Skavhaug, A Tveito - Journal of Computational and Applied …, 2008 - Elsevier
We derive and analyze a penalty method for solving American multi-asset option problems.
A small, non-linear penalty term is added to the Black–Scholes equation. This approach …