Blar i Department of Mathematics and Physics (TN-IMF) på tittel
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Mapping of misconceptions concerning the carbon cycle - a quantitative survey of students in lower secondary and upper secondary school.
(Master thesis, 2022)This study aims to map what misconceptions students in lower secondary and upper secondary school possess concerning the carbon cycle. Data was gathered quantitatively using an anony- mous survey. Over 200 students from ... -
Markov chain Monte Carlo
(Bachelor thesis, 2022)Denne bachelor avhandlingen går tar for seg Markovkjede og introduserer Metropolis-Hastings algoritmer. Avhandlingen går mer dypt inn i diskret tid Markovkjede. Metropolis-Hastings algoritme en type Markovkjede Monte Carlo. ... -
Matching the Nonequilibrium Initial Stage of Heavy Ion Collisions to Hydrodynamics with QCD Kinetic Theory
(Peer reviewed; Journal article, 2019-03)High-energy nuclear collisions produce a nonequilibrium plasma of quarks and gluons which thermalizes and exhibits hydrodynamic flow. There are currently no practical frameworks to connect the early particle production in ... -
Mathematical Analysis of Two Competing Cancer Cell Migration Mechanisms Driven by Interstitial Fluid Flow
(Peer reviewed; Journal article, 2020-04)Recent experimental work has revealed that interstitial fluid flow can mobilize two types of tumor cell migration mechanisms. One is a chemotactic-driven mechanism where chemokine (chemical component) bounded to the ... -
Mathematical and Numerical Aspects of Scalar Nonlinear Conservation Laws
(Master thesis, 2023)This thesis delves deeply into numerical solutions to nonlinear conservation laws. It focuses largely on the Method of Characteristics, its application in solving conservation laws, and the implementation of solutions in ... -
A mathematical approach to Wick rotations
(PhD thesis UiS;536, Doctoral thesis, 2020-09)In this thesis we define Wick-rotations mathematically using pseudo-Riemannian geometry, and relate Wick-rotations to real geometric invariant theory (GIT). We discover some new results concerning the existence of Wick ... -
The missing link in gravitational-wave astronomy: A summary of discoveries waiting in the decihertz range
(Peer reviewed; Journal article, 2021-04)Since 2015 the gravitational-wave observations of LIGO and Virgo have transformed our understanding of compact-object binaries. In the years to come, ground-based gravitational-wave observatories such as LIGO, Virgo, and ... -
Modelling fire occurrences in heavy goods vehicles in Norwegian road tunnels
(Masteroppgave/UIS-TN-IMF/2019;, Master thesis, 2019-06-15)This master thesis project has been organized to scrutinize current incident data on near fires and fully developed fires in Norwegian road tunnels longer than 500 meter. This length is chosen because it is assumed that ... -
Modified Kerr and Black Hole Ringdowns
(Master thesis, 2023)In the post-merger phase of a black hole binary system, the remnant object is a perturbed black hole emitting gravitational radiation in the form of Gravitational Waves (quasi-normal modes) before admitting a stable state. ... -
Multimessenger Constraints for Ultradense Matter
(Peer reviewed; Journal article, 2022)Recent rapid progress in neutron-star (NS) observations offers great potential to constrain the properties of strongly interacting matter under the most extreme conditions. In order to fully exploit the current observational ... -
Multimode Quasinormal Spectrum from a Perturbed Black Hole
(Peer reviewed; Journal article, 2023)When two black holes merge, the late stage of gravitational wave emission is a superposition of exponentially damped sinusoids. According to the black hole no-hair theorem, this ringdown spectrum depends only on the mass ... -
Multivariate Statistics
(Bachelor thesis, 2023)This bachelor thesis provides an introduction to multivariate statistics, which is the analysis of data with multiple variables using statistical methods. The thesis focuses on the generalization of the normal distribution ... -
New benchmarks in the modelling of X-ray atomic form factors
(Peer reviewed; Journal article, 2023)Analytical representations of X-ray atomic form factor data have been determined. The original data, f0(s;Z), are reproduced to a high degree of accuracy. The mean absolute errors calculated for all s = sin θ/λ and Z values ... -
New G2-conifolds in M-theory and their field theory interpretation
(Peer reviewed; Journal article, 2021)A recent theorem of Foscolo-Haskins-Nordström [1] which constructs complete G2-holonomy orbifolds from circle bundles over Calabi-Yau cones can be utilised to construct and investigate a large class of generalisations of ... -
New tests for trend in time censored recurrent event data
(Peer reviewed; Journal article, 2024-01)We consider testing for trend in recurrent event data. More precisely, for such data we consider testing of the null hypothesis of data coming from a renewal process. The new tests are essentially obtained by considering ... -
New tests for trend in time censored recurrent event data
(Peer reviewed; Journal article, 2024)We consider testing for trend in recurrent event data. More precisely, for such data we consider testing of the null hypothesis of data coming from a renewal process. The new tests are essentially obtained by considering ... -
A new variational discretization technique for initial value problems bypassing governing equations
(Peer reviewed; Journal article, 2023-03)Motivated by the fact that both the classical and quantum description of nature rest on causality and a variational principle, we develop a novel and highly versatile discretization prescription for classical initial value ... -
Nil-Killing vector fields and Kundt structures
(PhD thesis UiS;529, Doctoral thesis, 2020-06)This thesis is based on three papers, for which two have been submitted for publication and one is published. A chapter presenting relevant background material is included giving convenient access to preliminary foreknowledge ... -
No room to hide: implications of cosmic-ray upscattering for GeV-scale dark matter
(Peer reviewed; Journal article, 2023)The irreducible upscattering of cold dark matter by cosmic rays opens up the intriguing possibility of detecting even light dark matter in conventional direct detection experiments or underground neutrino detectors. The ... -
Noether currents of locally equivalent symmetries
(Peer reviewed; Journal article, 2020)Local symmetry transformations play an important role for establishing the existence and form of a conserved (Noether) current in systems with a global continuous symmetry. We explain how this fact leads to the existence ...