Browsing Department of Mathematics by Title
Now showing items 237256 of 425

Natural Convection in Layered Porous Media between Coaxial Cylinders
(The University of Bergen, 20150531)In this thesis a mathematical model is developed to describe the onset of natural convection in a twolayer porous medium located between two coaxial cylinders, motivated by natural convection processes in geothermal ...Master thesis 
Negativ binomisk regresjon med modifiserte sannsynligheter for nullobservasjoner; ZINB og ZANB
(The University of Bergen, 20131106)Regresjonsmodeller av Poisson og negativ binomisk fordeling blir ofte brukt til å utføre regresjonsanalyse på datasett innen medisin, biologi, økonomi og mange andre fagfelt. Det oppstår ofte tilfeller der andelen av ...Master thesis 
New examples of curves with a onedimensional family of pencils of minimal degree
(Springer, 20110714)We give a geometric construction of sublinear systems on a K3 surface consisting of smooth curves C with infinitely many g1 gon(C)’s.Peer reviewedJournal article 
A New Preconditioner for Iterative Phase Splitting Routines
(The University of Bergen, 2002)This thesis proposes a new, faster, noniterative phase split estimate for multi component mixtures, and compares it with the previously published method of Wang and Stenby, in terms of their suitability as possible ...Master thesis 
Nivådeling i matematikk på ungdomsskolen  en kvalitativ undersøkelse
(The University of Bergen, 20120530)I Kunnskapløftet, K06, legges det stor vekt på tilpasset opplæring til hver enkelt elev. Flere ungdomsskoler har innført nivådeling i matematikk som et tiltak for å imøtekomme dette kravet. I Norge står enhetsskoletanken ...Master thesis 
Noen metoder for analyse av alderperiodekohortmodeller
(The University of Bergen, 2008)Master thesis 
Noen sammenhenger mellom grafer, matroider, lineære koder og trelliser
(The University of Bergen, 2008)Master thesis 
Noncommutative Harmonic Analysis: Generalization of Phase Correlation to the Euclidean Motion Group
(The University of Bergen, 20100610)This thesis is about noncommutative harmonic analysis, and generalization of phase correlation to the euclidean motion group and application in image processing.Master thesis 
NonSlit Solutions to the Loewner Equation
(The University of Bergen, 20100430)We study conditions on the driving term of the Loewner equation which guarantee that the equation generates slits. We construct a new family of examples of nonslit solutions which generalize Kufarev's example, in which ...Master thesis 
Nonstandard shocks in the BuckleyLeverett equation
(Elsevier, 201508)It is shown how delta shock waves which consist of Dirac delta distributions and classical shocks can be used to construct nonmonotone solutions of the Buckley–Leverett equation. These solutions are interpreted using a ...Journal article 
Nonholonomic geometry on finite and infinite dimensional Lie groups and rolling manifolds
(The University of Bergen, 20120330)Part I: We start by giving some background on the topics discussed in this thesis. The main topic of the thesis is nonholonomic geometry. In Chapter 1 we give an introduction of nonholonomic geometry in the context of ...Doctoral thesis 
Nonhydrostatic pressure in ocean models with focus on wind driven internal waves
(The University of Bergen, 20100205)Doctoral thesis 
Nonlinear crossspectrum analysis via the local Gaussian correlation
(2017)Spectrum analysis can detect frequency related structures in a time series $\{Y_t\}_{t\in\mathbb{Z}}$, but may in general be an inadequate tool if asymmetries or other nonlinear phenomena are present. This limitation is a ...Journal article 
Nonlinear spectral analysis via the local Gaussian correlation
(2017)The spectral distribution $f(\omega)$ of a stationary time series $\{Y_t\}_{t\in\mathbb{Z}}$ can be used to investigate whether or not periodic structures are present in $\{Y_t\}_{t\in\mathbb{Z}}$, but $f(\omega)$ has some ...Journal article 
Nonlinear Spectrum Analysis based on the Local Gaussian Correlation and Model Selection for Copulas
(The University of Bergen, 20171120)Doctoral thesis 
The Norwegian Stock Market:  A Local Gaussian Perspective
(The University of Bergen, 20130603)In this thesis, using daily returns from 18 stocks, oil price, exchange rates and the main index of the Oslo Stock Exchange over a period of 5 years, we investigate how the Local Gaussian Correlation can be used to ...Master thesis 
A numerical approach to ruin probability in finite time for fitted models with investment
(The author, 2012)In this paper we present a numerical method for solving a partial integrodifferential equation (PIDE) associated with ruin probability, when the surplus is continuously invested in stochastic assets. The method ... 
Numerical bifurcation for the capillary Whitham equation
(Elsevier, 201703)The socalled Whitham equation arises in the modeling of free surface water waves, and combines a generic nonlinear quadratic term with the exact linear dispersion relation for gravity waves on the free surface of a fluid ...Journal article 
Numerical computation of a finite amplitude sound beam
(Department of Mathematics, University of Bergen, 1986)Working paper 
Numerical Methods for Conservation Laws with a Discontinuous Flux Function
(The University of Bergen, 20110601)When simulating twophase flow in a porous medium, numerical methods are used to solve the equations of flow, called conservation laws. In the industry, this is done by a reservoir simulator, and the most widely used method ...Master thesis