Browsing Department of Mathematics by Title
Now showing items 96115 of 391

A Fast Continuous MaxFlow Approach to NonConvex Multilabeling Problems
(The authors, 2011)This work addresses a class of multilabeling problems over a spatially continuous image domain, where the data fidelity term can be any bounded function, not necessarily convex. Two total variation based regularization terms ... 
Fast Image Segmentation Using Variational Optimization Methods With Edge Detector
(The University of Bergen, 20140602)In this work, we apply techniques in variational optimization to image segmentation. We study three different segmentation models: one is based on the active contour method, the second is based on a piecewise constant level ...Master thesis 
Feasibility of simplified integral equation modeling of lowfrequency marine CSEM with a resistive target
(Society of Exploration Geophysicists, 2009)We have assessed the accuracy of a simplified integral equation (SIE) modeling approach for marine controlledsource electromagnetics (CSEM) with low applied frequencies and a resistive target. The most computationally ...Peer reviewedJournal article 
Fieldcase simulation of CO2plume migration using verticalequilibrium models
(Elsevier, 2011)When injected in deep saline aquifers, CO2 moves radially away from the injection well and progressively higher in the formation because of buoyancy forces. Analyzes have shown that after the injection period, CO2 will ...Journal article 
Finite volume hydromechanical simulation in porous media
(Wiley, 20140527)Cellcentered finite volume methods are prevailing in numerical simulation of flow in porous media. However, due to the lack of cellcentered finite volume methods for mechanics, coupled flow and deformation is usually ...Journal article 
FiniteElement Modelling of BuoyancyDriven Flow in Natural Geothermal Systems
(The University of Bergen, 20100527)Finite element modelling of buoyancy driven flow in geothermal systems is presented in this thesis. The main focus is on the development of a numerical modelling tool. The program developed is tested for classical benchmarks ...Master thesis 
The Flow of Quasiconformal Mappings on S³ with Contact structure and a Family of Surfaces on the Heisenberg Group
(The University of Bergen, 20110531)Master thesis 
Flow Properties of Fully Nonlinear Model Equations for Surface Waves
(The University of Bergen, 20171103)The focus of this thesis is wave motion in shallow water. In particular, we investigate some properties of flows underneath long waves in shallow water and present the results in two parts. The first part contains a ...Doctoral thesis 
Fourier analysis on abelian groups; theory and applications
(The University of Bergen, 2017)Fourier analysis expresses a function as a weighted sum of complex exponentials. The Fourier machinery can be applied when a function is defined on a locally compact abelian group (LCA). The groups R, T = R / Z, Z and Z_n ...Master thesis 
Fullyimplicit simulation of verticalequilibrium models with hysteresis and capillary fringe
(Springer, 201602)Geological carbon storage represents a new and substantial challenge for the subsurface geosciences. To increase understanding and make good engineering decisions, containment processes and largescale storage operations ...Journal article 
Fører omvendt undervisning til høyere læringsutbytte?
(The University of Bergen, 20171220)Omvendt undervisning blir mer og mer populært. Omvendt undervisning er en undervisningsmetode hvor gjennomgangen av nye temaer gjøres ved at elevene ser en videoforelesning hjemme, når eleven kommer på skolen vil fokuset ...Master thesis 
GAMLSSmodeller i bilforsikring
(The University of Bergen, 20120601)I denne oppgaven tester jeg ulike modeller for prediksjon av total skadeutbetaling fra forsikringsselskap til forsikringstaker i et poliseår. Modellene som testes hører til rammeverket Generalized Additive Models for ...Master thesis 
Gasslekkasjar i Marine miljø
(The University of Bergen, 20120619)I denne masteroppgåva studerast fluidstrøymingar gjennom marine sediment, og målet er å vurdere om ein enkel matematisk modell klarar å beskrive og bevare karakteristiske trekk for prosessen. Denne drøftinga vil baserast ...Master thesis 
General Slit Stochastic Löwner Evolution and Conformal Field Theory
(The University of Bergen, 20160122)Doctoral thesis 
Generated Sound Waves in Corrugated Pipes
(The University of Bergen, 20120601)This paper studies sound waves generated in corrugated pipes by using computational fluid dynam ics. The author did not have any prior experience in computational fluid dynamics and therefore a substantial part was ...Master thesis 
Generating function and volume preserving mappings
(The American Institute of Mathematical Sciences, 201403)In this paper, we study generating forms and generating functions for volume preserving mappings in Rn. We derive some parametric classes of volume preserving numerical schemes for divergence free vector fields. In passing, ...Peer reviewed 
Genotyping errors in a calibrated DNA register: implications for identification of individuals
(BioMed Central, 20110420)Background: The use of DNA methods for the identification and management of natural resources is gaining importance. In the future, it is likely that DNA registers will play an increasing role in this development. Microsatellite ...Peer reviewedJournal article 
Geological Storage of CO2: Sensitivity and Risk Analysis
(The University of Bergen, 20140410)Geological CO2 storage has the potential to be a key technology for prevention of industrial CO2 emission into the atmosphere. A successful storage operation requires safe geological structures with large storage capacity. ...Doctoral thesis 
Geometric and Spectral Properties of Hypoelliptic Operators
(The University of Bergen, 20170726)Master thesis 
Global Minimization for Continuous Multiphase Partitioning Problems Using a Dual Approach
(Springer Verlag, 2010)This paper is devoted to the optimization problem of continuous multipartitioning, or multilabeling, which is based on a convex relaxation of the continuous Potts model. In contrast to previous efforts, which are ...Peer reviewedJournal article