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Andreas Asheim
Andreas Asheim
Researcher, St. Olav's Hospital Trondheim
Verified email at ntnu.no
Title
Cited by
Cited by
Year
An integral equation formulation for the diffraction from convex plates and polyhedra
A Asheim, U Peter Svensson
The Journal of the Acoustical Society of America 133 (6), 3681-3691, 2013
532013
Asymptotic analysis of numerical steepest descent with path approximations
A Asheim, D Huybrechs
Foundations of Computational Mathematics 10, 647-671, 2010
522010
Complex Gaussian quadrature for oscillatory integral transforms
A Asheim, D Huybrechs
IMA Journal of Numerical Analysis 33 (4), 1322-1341, 2013
402013
A Gaussian quadrature rule for oscillatory integrals on a bounded interval
A Asheim, A Deaño, D Huybrechs, H Wang
arXiv preprint arXiv:1212.1293, 2012
342012
Real-time forecasting of emergency department arrivals using prehospital data
A Asheim, LP Bache-Wiig Bjørnsen, LE Næss-Pleym, O Uleberg, J Dale, ...
BMC emergency medicine 19, 1-6, 2019
322019
Local solutions to high-frequency 2D scattering problems
A Asheim, D Huybrechs
Journal of Computational Physics 229 (14), 5357-5372, 2010
282010
Actigraphy as an objective intra-individual marker of activity patterns in acute-phase bipolar disorder: a case series
K Krane-Gartiser, A Asheim, OB Fasmer, G Morken, AE Vaaler, J Scott
International journal of bipolar disorders 6, 1-7, 2018
232018
Extraction of uniformly accurate phase functions across smooth shadow boundaries in high frequency scattering problems
A Asheim, D Huybrechs
SIAM Journal on Applied Mathematics 74 (2), 454-476, 2014
192014
Time of admission and mortality after hip fracture: a detailed look at the weekend effect in a nationwide study of 55,211 hip fracture patients in Norway
A Asheim, SM Nilsen, M Toch-Marquardt, KS Anthun, LG Johnsen, ...
Acta orthopaedica 89 (6), 610-614, 2018
182018
Efficient evaluation of edge diffraction integrals using the numerical method of steepest descent
A Asheim, UP Svensson
Journal of the Acoustical Society of America 128 (4), 1590, 2010
182010
The effect of emergency department delays on 30-day mortality in Central Norway
A Asheim, SM Nilsen, F Carlsen, LE Næss-Pleym, O Uleberg, J Dale, ...
European Journal of Emergency Medicine 26 (6), 446-452, 2019
172019
Hospitals discharge tendency and risk of death-an analysis of 60,000 Norwegian hip fracture patients
SM Nilsen, JH Bjørngaard, F Carlsen, KS Anthun, LG Johnsen, LJ Vatten, ...
Clinical Epidemiology, 173-182, 2020
152020
A combined Filon/asymptotic quadrature method for highly oscillatory problems
A Asheim
BIT Numerical Mathematics 48, 425-448, 2008
132008
Numerical methods for highly oscillatory problems
A Asheim
NTNU, 2010
102010
Some studies on the deformation of the membrane in an RF MEMS switch
VR Ambati, A Asheim, JB van den Berg, Y van Gennip, T Gerasimov, ...
Proceedings of the sixty-third European Study Group Mathematics with …, 2008
82008
Time-domain formulation of an edge source integral equation
P Svensson, A Asheim
Proceedings of Meetings on Acoustics 19 (1), 2013
72013
Edge-diffraction based integral equation for the scattering from convex rigid polyhedra
UP Svensson, A Asheim
Proc. of Forum Acusticum, 179-184, 2011
72011
A remedy for the failure of the numerical steepest descent method on a class of oscillatory integrals
A Asheim
BIT Numerical Mathematics 54 (3), 587-605, 2014
62014
Applying the numerical method of steepest descent on multivariate oscillatory integrals in scattering theory
A Asheim
arXiv preprint arXiv:1302.1019, 2013
62013
Regarding the absolute stability of Störmer-Cowell methods
SP Nørsett, A Asheim
TW Reports, 2011
52011
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