Browsing Department of Mathematics by Title
Now showing items 361-380 of 677
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Natural Convection in Layered Porous Media between Coaxial Cylinders
(Master thesis, 2015-05-31)In this thesis a mathematical model is developed to describe the onset of natural convection in a two-layer porous medium located between two coaxial cylinders, motivated by natural convection processes in geothermal ... -
Negativ binomisk regresjon med modifiserte sannsynligheter for nullobservasjoner; ZINB og ZANB
(Master thesis, 2013-11-06)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 ... -
New examples of curves with a one-dimensional family of pencils of minimal degree
(Peer reviewed; Journal article, 2011-07-14)We give a geometric construction of sub-linear systems on a K3 surface consisting of smooth curves C with infinitely many g1 gon(C)’s. -
A new framework for assessing subject-specific whole brain circulation and perfusion using MRI-based measurements and a multi-scale continuous flow model
(Peer reviewed; Journal article, 2019-06-25)A large variety of severe medical conditions involve alterations in microvascular circulation. Hence, measurements or simulation of circulation and perfusion has considerable clinical value and can be used for diagnostics, ... -
A New Preconditioner for Iterative Phase Splitting Routines
(Master thesis, 2002)This thesis proposes a new, faster, non-iterative 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 ... -
Nivådeling i matematikk på ungdomsskolen - en kvalitativ undersøkelse
(Master thesis, 2012-05-30)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 ... -
Noen metoder for analyse av alder-periode-kohort-modeller
(Master thesis, 2008) -
Noen sammenhenger mellom grafer, matroider, lineære koder og trelliser
(Master thesis, 2008) -
Non-commutative Harmonic Analysis: Generalization of Phase Correlation to the Euclidean Motion Group
(Master thesis, 2010-06-10)This thesis is about noncommutative harmonic analysis, and generalization of phase correlation to the euclidean motion group and application in image processing. -
Non-Slit Solutions to the Loewner Equation
(Master thesis, 2010-04-30)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 non-slit solutions which generalize Kufarev's example, in which ... -
Non-standard shocks in the Buckley-Leverett equation
(Peer reviewed; Journal article, 2015-08)It is shown how delta shock waves which consist of Dirac delta distributions and classical shocks can be used to construct non-monotone solutions of the Buckley–Leverett equation. These solutions are interpreted using a ... -
Nonholonomic geometry on finite and infinite dimensional Lie groups and rolling manifolds
(Doctoral thesis, 2012-03-30)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 ... -
Nonhydrostatic pressure in ocean models with focus on wind driven internal waves
(Doctoral thesis, 2010-02-05) -
Nonlinear cross-spectrum analysis via the local Gaussian correlation
(Journal article, 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 ... -
Nonlinear Effects During Transient Fluid Flow in Reservoirs as Encountered in Well-Test Analysis
(Department of Applied Mathematics report, Research report, 1985-03) -
Nonlinear equations of acoustics in inhomogeneous, thermoviscous fluids
(Department of Applied Mathematics report, Research report, 1991-03) -
Nonlinear propagation and interaction of collinear sound beams
(Department of Applied Mathematics report, Research report, 1989-10) -
Nonlinear spectral analysis via the local Gaussian correlation
(Journal article, 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 \(f(\omega)\) ... -
Nonlinear Spectrum Analysis based on the Local Gaussian Correlation and Model Selection for Copulas
(Doctoral thesis, 2017-11-20) -
The Norwegian Stock Market: - A Local Gaussian Perspective
(Master thesis, 2013-06-03)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 describe ...