Blar i Department of Mathematics på tittel
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Sub-semi-Riemannian geometry on Heisenberg-type groups
(Doctoral thesis, 2011-02-04) -
Subsea pump vibration analysis for predictive maintenance
(Master thesis, 2015-11-29)The goal of this study is to compare vibration signals of subsea pumps from two different time periods. These signals are gathered for predictive maintenance reasons. Vibration analysis is one of the most efficient tools ... -
SUCCESS: SUbsurface CO2 storage–Critical elements and superior strategy
(Peer reviewed; Journal article, 2011)SUCCESS is a Center for Environmental Energy Research in Norway and performs research related to geological storage of CO2 in the subsurface. The SUCCESS centre is established by the Research Council of Norway together ... -
Supervised Continuous Max-flow for Segmentation of Images with Intensity Inhomogeneities
(Master thesis, 2016-05-26)In this thesis we propose a regional adaptive active contour model for segmenting images with intensity inhomogeneities effectively. This model includes a regularization term, a global energy term and a local energy term. ... -
Sur la distance à l'instabilité de polynômes matriciels quadratiques / On the distance to instability of quadratic matrix polynomials
(Peer reviewed; Journal article, 2019-06-27)A bisection method is developed for computing the distance to instability of quadratic matrix polynomials. The computation takes rounding errors into account. -
Sur le transport de masse produit par des oscillations en milieu compressible, dissipatif et inhomogène
(Department of Applied Mathematics report, Research report, 1972-12) -
Surface reconstruction Using Probability Based Photo-Consistency
(Master thesis, 2009-12-04)We reconstruct the surface of an object seen from many different angles. We construct an energy functional by using visibility constraints and photo-consistency. This is then solved by the piecewise constant level set method. -
Survey strategies to quantify and optimize detecting probability of a CO2 seep in a varying marine environment
(Peer reviewed; Journal article, 2016-09)Designing a marine monitoring program that detects CO2 leaks from subsea geological storage projects is challenging. The high variability of the environment may camouflage the anticipated anisotropic signal from a leak and ... -
Symmetric spaces and Lie triple systems in numerical analysis of differential equations
(Peer reviewed; Journal article, 2014-03)A remarkable number of different numerical algorithms can be understood and analyzed using the concepts of symmetric spaces and Lie triple systems, which are well known in differential geometry from the study of spaces of ... -
Symmetric waves are traveling waves of some shallow water scalar equations
(Journal article; Peer reviewed, 2023)Following a straightforward proof for symmetric solutions to be traveling waves by Pei (Exponential decay and symmetry of solitary waves to Degasperis-Procesi equation. Journal of Differential Equations. 2020;269(10):7730-7749), ... -
Symmetry and simplicity spontaneously emerge from the algorithmic nature of evolution
(Journal article; Peer reviewed, 2022)Engineers routinely design systems to be modular and symmetric in order to increase robustness to perturbations and to facilitate alterations at a later date. Biological structures also frequently exhibit modularity and ... -
Syntetisk CDO: iTraxx-prising ved bruk av en Normal Invers Gaussisk Copula
(Master thesis, 2013-04-04)I denne oppgaven skal vi se at det er et stort marked for kredittderivater etter finanskrisen, men da i en vridning mot syntetiske varianter. Men framtidsutsiktene er usikre, da disse produktene er i en særstilling når det ... -
Temporal Scale-Dependent Sensitivity Analysis for Hydrological Model Parameters Using the Discrete Wavelet Transform and Active Subspaces
(Journal article; Peer reviewed, 2021)Global sensitivity analysis is an important step in the process of developing and analyzing hydrological models. Measured data of different variables are used to identify the number of sensitive model parameters and to ... -
Tensor Induction as Left Kan Extension
(Master thesis, 2014-12-02) -
Testmetoder for identifisering av publikasjonsbias i metaanalyser
(Master thesis, 2012-10-24)Testmetoder for identifisering av publikasjonsbias i metaanalyser. -
Theoretical Investigation of Heat and Streaming generated by high Intensity Ultrasound
(Department of Applied Mathematics report, Research report, 1998-07) -
Theta-Regularity and Log-Canonical Threshold
(Master thesis, 2018-05-30)The log-canonical threshold is an invariant that is widely used in modern birational geometry. It contains information regarding the singularities of sheaves of ideals. The theta-regularity index is a regularity condition ... -
Thickness and weak integrability & approximation and u-ideals
(Doctoral thesis, 2007-06-15) -
Threshold estimation based on local minima for nucleus and cytoplasm segmentation
(Journal article; Peer reviewed, 2022)Background: Image segmentation is the process of partitioning an image into separate objects or regions. It is an essential step in image processing to segment the regions of interest for further processing. We propose a ... -
Time Series: Forecasting and Evaluation Methods With Concentration On Evaluation Methods for Density Forecasting
(Master thesis, 2018-06-06)The main focus of this thesis are density forecasts and the corresponding evaluation methods. A density forecast is an estimate of the probability density of predicted values. Density forecasts and the related evaluation ...