Blar i Department of Mathematics på tittel
Viser treff 174-193 av 1115
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Decay estimates of Green's matrices for discrete-time linear periodic systems
(Journal article; Peer reviewed, 2023)We study periodic Lyapunov matrix equations for a general discrete-time linear periodic system Bpxp−Apxp−1=fp, where the matrix coefficients Bp and Ap can be singular. The block coefficients of the inverse operator of the ... -
Decay of solitary waves of fractional Korteweg-de Vries type equations
(Journal article; Peer reviewed, 2023)We study the solitary waves of fractional Korteweg-de Vries type equations, that are related to the 1- dimensional semi-linear fractional equations: |D|αu + u − f (u) = 0, with α ∈ (0, 2), a prescribed coefficient p∗(α), ... -
Decline in temperature variability on Svalbard
(Journal article; Peer reviewed, 2020)The variability in the temperature on Svalbard, Norway, has been decreasing over the last four decades. This may be due to the reduction in sea ice, transitioning the regional climate to a more stable, coastal one.We ... -
Decreased severity of the Omicron variant of concern: further evidence from Italy
(Journal article; Peer reviewed, 2022) -
Deep learning-based cross-sensor super resolution of satellite images
(Master thesis, 2021-11-22)Subtitle: Multispectral-to-panchromatic single-image super resolution of GeoEye-1 satellite images using an ESRGAN deep learning model trained exclusively on WorldView-2 images. Abstract: Today, easy and abundant access ... -
Deformations of rational surface singularities and reflexive modules with an application to flops
(Peer reviewed; Journal article, 2018)Blowing up a rational surface singularity in a reflexive module gives a (any) partial resolution dominated by the minimal resolution. The main theorem shows how deformations of the pair (singularity, module) relates to ... -
Degenerate Convection-Diffusion Equations and Implicit Monotone Difference Schemes
(Department of Applied Mathematics report, Research report, 1998-03) -
«Den der går og tror jeg, fordi...» En kvalitativ analyse av elevers resonnement og argumentasjon med en programmeringsoppgave med tema figurtall
(Master thesis, 2021-06-01)Høsten 2020 begynte innføringen av de nye læreplanene LK20 i norsk skole. Denne fagfornyelsen innebærer at elevene skal være rustet til å mestre fremtidens utfordringer (Kunnskapsdepartementet, 2016). En av de store ... -
A Dense Gas Model of Combined Transports and Distributions of Solutes in the Interstitium including Steric and Electrostatic Exclusion Effects, and Comparison with Experimental Data
(Master thesis, 2010-05-27)Mathematical modeling of physiological fluid systems is regarded as an important tool for further understanding of circulatory properties. The interstitium is a fluid filled space outside the cells in the body, and all ... -
Derivation and numerical solution of fully nonlinear and fully dispersive water wave model equations
(Doctoral thesis, 2017-06-09)The water wave theory is a classical part of Fluid Mechanics. It has a long scientific history with a great number of mathematical results [10, 32]. The first studies in this field were done by Stokes in 1847 [34]. He ... -
Derivation of Boussinesq's shoaling law using a coupled BBM system
(Peer reviewed; Journal article, 2013-03-14)This paper is focused on finding rules for waveheight change in a solitary wave as it runs up a slowly increasing bottom. A coupled BBM system is used to describe the solitary waves. Expressions for energy density and ... -
Derived equivalences of canonical covers of hyperelliptic and Enriques surfaces in positive characteristic
(Peer reviewed; Journal article, 2019)We prove that any Fourier–Mukai partner of an abelian surface over an algebraically closed field of positive characteristic is isomorphic to a moduli space of Gieseker-stable sheaves. We apply this fact to show that the ... -
Derived Logarithmic Hochschild Homology
(Master thesis, 2018-06-27) -
A description of daphnicle dynamics based on kinetic theory: Attempts at analogue-modelling of swarming and behaviour of Daphnia
(Department of Applied Mathematics report, Research report, 2001-06) -
Design of a monitoring program in a varying marine environment
(Master thesis, 2015-09-14)In this thesis we develop methods for optimal design of a monitoring program for offshore geological CO2 storage. The goal is to find the layout of fixed chemical sensors at the seafloor that maximizes the probability of ... -
«Det var jo en åpenbaring. Blir nesten som om vi har oppdaget en ny religion!» En casestudie av et utforskende Matematikk 1T-klasserom.
(Master thesis, 2022-06-01)Denne masteroppgaven presenterer en casestudie som ser på hvordan en erfaren og engasjert matematikklærer kan få til et utforskende klasserom, der læring skjer i samhandling mellom elevene. Målet med forskningsprosjektet ... -
Detecting atmospheric rivers using persistent homology
(Master thesis, 2015-06-01)This master's thesis is a first investigation on the problem of seeing whether it is possible to detect atmospheric rivers using persistent homology. Two different computations are done and a basic analysis is made. In ... -
Detecting leakage of brine or CO2 through abandoned wells in a geological sequestration operation using pressure monitoring wells
(Peer reviewed; Journal article, 2011)For risk assessment, policy design and GHG emission accounting it is extremely important to know if any CO2 or brine has leaked from a geological sequestration (GS) operation. As such, it is important to understand if it ... -
Detecting Periodic Elements in Higher Topological Hochschild Homology
(Doctoral thesis, 2013-08-20) -
Detection and quantification of CO2 seepage in seawater using the stoichiometric Cseep method: Results from a recent subsea CO2 release experiment in the North Sea
(Journal article; Peer reviewed, 2021)Carbon Capture and Storage (CCS) is a potential significant mitigation strategy to combat climate change and ocean acidification. The technology is well understood but its current implementation must be scaled up nearly ...