Browsing Department of Mathematics by Title
Now showing items 2140 of 890

Admissibility conditions for Riemann data in shallow water theory
(Journal article; Peer reviewed, 2020)Consideration is given to the shallowwater equations, a hyperbolic system modeling the propagation of long waves at the surface of an incompressible inviscible fluid of constant depth. It is well known that the solution ... 
Advection Upscaling for Heat Transport in Fractured Geothermal Reservoir
(Master thesis, 20180620)The main objective in this thesis is to give numerical solution for advection term of heat transport equation in fractured geothermal reservoir. To get better insight in the fracture influence on the processes we will ... 
Algebra i første klasse
(Master thesis, 20151012)Oppgaven handler om algebra i første klasse. Hva er tidlig algebra og hvordan kan vi undervise på en slik måte at vi utvikler elevenes algebraiske tenkning? Tidlig algebra er ikke at vi underviser skolealgebra tidligere, ... 
Algebravansker. Hva er årsaken til at elevene syns algebra er vanskelig? Er det hull i grunnleggende kunnskap og/eller misoppfatninger hos elever på videregående skole som gjør at algebra er vanskelig for dem?
(Master thesis, 2017)I denne oppgaven kommer det fram hva årsaken og problemer elever på videregående kan ha i algebra som gjør at de syns algebra er vanskelig, og gjør det dårlig i dette emnet. Resultatene fra TIMSS Advanced i 2015 viser at ... 
An algorithm for internal morging of two subsets with small extra storage requirements.
(Department of Applied Mathematics report, Research report, 197409) 
Alternative læringsmåter for derivasjon i R1  en komparativ analyse
(Master thesis, 20160601)I denne masteroppgaven har jeg studert elever som har arbeidet med derivasjon i matematikk R1. Formålet har vært å sammenligne to alternative læringsmåter med tradisjonell oppgaveregning, med tanke på læringsutbytte på ... 
Analyse av undervisningsopplegg med undersøkende matematikk
(Master thesis, 20170726)I denne masteroppgaven ser jeg på hvilken effekt undersøkende matematikk kan ha på elevers holdninger til faget med hovedvekt på motivasjon. Prosjektene har blitt gjennomført med ungdomsskoleelever ved Stiftelsen ... 
Analysis and Approximation of Coupled 1D3D Flow Models
(Doctoral thesis, 20200318)In this thesis, we consider a specific instance of mixeddimensional partial differential equations (PDEs) commonly referred to as the coupled 1D3D flow model. The model itself consists of the Poisson equation defined on ... 
Analysis and Numerics of strongly degenerate Convectiondiffusion Problems Modelling sedimentationconsolidation Processes
(Department of Applied Mathematics report, Research report, 199909) 
Analysis of AMR and Other MeshRefinement Techniques for Inviscid Fluid Problems
(Master thesis, 20210601) 
Analysis of Control Volume Heterogeneous Multiscale Methods for Single Phase Flow in Porous Media
(Peer reviewed; Journal article, 2014)The standard approximation for the flowpressure relationship in porous media is Darcy's law that was originally derived for infiltration of water in fine homogeneous sands. Ever since there have been numerous attempts to ... 
Analysis of left truncated data with an application to insurance data
(Master thesis, 20090602)This thesis discusses different ways of analysing left truncated data when the lower bound itself is a stochastic variable. We will consider the possible dependence between the variable of interest and the truncating ... 
Analysis of multibeam sonar echos of herring schools by means of simulation
(Doctoral thesis; Peer reviewed, 20130531)The synchronized behavior of large schools of fish can be a fascinating sight and has caught the attention of researchers for decades. Schools of thousands, or even millions of fish can seemingly function as a single entity, ... 
Analysis of nonlinear shallow water equations discretized on Arakawa Cgrids
(Master thesis, 20160601)To model the behaviour of flow and waves in three dimensions, one may use the NavierStokes equations. These equations leads to the shallow water equations, when the depth is much smaller than the wavelength. The shallow ... 
Analysis of the probability of default in peertopeer lending. Application of different classification techniques.
(Master thesis, 20181222)In this thesis, peertopeer lending is explored and analyzed with the objective of fitting a model to accurately predict if borrowers default on their loans or not. The foundation for the thesis is a dataset from LendingClub, ... 
Analytical Methods for Upscaling of Fractured Geological Reservoirs
(Doctoral thesis, 20151016)Numerical simulations have become an essential tool for planning well operations in the subsurface, whether the application is petroleum production, geothermal energy, groundwater utilization or waste disposal and leakage. ... 
Analytical solutions for aquifer thermal energy storage
(Peer reviewed; Journal article, 201702)The concept of aquifer thermal energy storage involves injection of water at elevated temperature, and possibly nonambient salinity, into a host aquifer. We consider axisymmetric injection, wherein both the composition and ... 
Analytical, combinatorial and topological properties of quadratic differentials and their applications
(Doctoral thesis, 20171213)Quadratic differentials ﬁrst appeared in 1930s in works of Teichmuller in connection with moduli problem for Riemann surfaces. Later it was revealed that quadratic differ entials and their trajectories give solutions to ... 
APARCH Models Estimated by Support Vector Regression
(Master thesis, 20210601)This thesis presents a comprehensive study of asymmetric power autoregressive conditional heteroschedasticity (APARCH) models for modelling volatility in financial return data. The goal is to estimate and forecast volatility ...