Department of Mathematics and Physics (TNIMF): Recent submissions
Now showing items 120 of 275

Prevalence of bradycardia in 4876 newborns in the first minute after birth and association with positive pressure ventilation: A populationbased crosssectional study
(Peer reviewed; Journal article, 2023)Objective To determine the prevalence of bradycardia in the first minute after birth and association with positive pressure ventilation (PPV). Method A populationbased crosssectional study was conducted from June 2019 ... 
Abinitio QCD Calculations Impact the Inference of the Neutronstarmatter Equation of State
(Peer reviewed; Journal article, 2023)We demonstrate that abinitio calculations in QCD at high densities offer significant and nontrivial information about the equation of state of matter in the cores of neutron stars, going beyond that which is obtainable ... 
Fra topologi til algebra til analyse
(Master thesis, 2023) 
Sammenheng mellom dentalt plakk og forkalkninger i arterievegger
(Bachelor thesis, 2022) 
Identification of the flux function of nonlinear conservation laws with variable parameters
(Peer reviewed; Journal article, 202309)Machine learning methods have in various ways emerged as a useful tool for modeling the dynamics of physical systems in the context of partial differential equations (PDEs). Nonlinear conservation laws (NCLs) of the form ... 
A new variational discretization technique for initial value problems bypassing governing equations
(Peer reviewed; Journal article, 202303)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 ... 
RealTime Complex Langevin  A Differential Programming Perspective
(PhD thesis UiS;, Doctoral thesis, 2023)In this thesis, I aim to find solutions to the NPhard signproblem that arises when modeling strongly correlated systems in realtime. I will use the complex Langevin (CLE) method, and address its problem of runaway ... 
Can cancer cells inform us about the tumor microenvironment?
(Peer reviewed; Journal article, 2023)Characteristics of the tumor microenvironment (TME) such as the leaky intratumoral vascular network and the density and composition of the desmoplastic extracellular matrix (ECM) contain essential information that determine ... 
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 ... 
The Unicity of a Blowdown.
(Master thesis, 2023)In algebraic geometry, projective varieties are classified up to isomorphism. This involves classifying the varieties up to birational equivalence and classifying nonsingular varieties in each equivalence class up to ... 
Bayesian uncertainty quantification of perturbative QCD input to the neutronstar equation of state
(Peer reviewed; Journal article, 2023)The equation of state of neutronstar cores can be constrained by requiring a consistent connection to the perturbative Quantum Chromodynamics (QCD) calculations at high densities. The constraining power of the QCD input ... 
Learning the nonlinear flux function of a hidden scalar conservation law from data
(Peer reviewed; Journal article, 202310)Nonlinear conservation laws are widely used in fluid mechanics, biology, physics, and chemical engineering. However, deriving such nonlinear conservation laws is a significant and challenging problem. A possible attractive ... 
Dybdelæring og tverrfaglighet
(Master thesis, 2023)Da ny læreplan av 2020 ble introdusert, var det spesielt et begrep som stod i fokus  dybdelæring. Hvor tidligere læreplan ønsket at elevene skulle kunne utføre oppgaver gjennom en instrumentell forståelse, skulle elevene ... 
New benchmarks in the modelling of Xray atomic form factors
(Peer reviewed; Journal article, 2023)Analytical representations of Xray 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 ... 
Syntese og fotonedbrytningsevaluering av aminoalkoholer og oksazolidiner
(Master thesis, 2023)Synteseforskning på etanolaminer og deres derivater, oksazolidiner, representerer bare en del av den større innsatsen for å bekjempe antibiotikaresistens og utvikle nye strategier for behandling. Antibiotikaresistens er ... 
Modified Kerr and Black Hole Ringdowns
(Master thesis, 2023)In the postmerger phase of a black hole binary system, the remnant object is a perturbed black hole emitting gravitational radiation in the form of Gravitational Waves (quasinormal modes) before admitting a stable state. ... 
Harmonic Phonon Transport in Strontium Titanate: experiment vs computation
(Master thesis, 2023)Thermoelectric materials can be a boon for the temperature regulation industry, however, before its popular use as a green energy management solution, it is imperative that we uncover thermal transport in these materials. ... 
PRECISE COMPUTATION OF MODULI SPACE FOR STANDARD EMBEDDING.
(Master thesis, 2023)This thesis has undertaken the task of clearly defining the full heterotic moduli space for E_8 x E_8 heterotic string theory in standard embedding while utilizing the mathematical tools offered by the deformation theory ... 
Transversality, Intersection Theory and Sheaf Theory
(Master thesis, 2023)In this thesis we present the theory of transversality and intersection theory on manifolds. Thereafter we present the theory of sheaves with the goal of using sheaf theory on manifolds together with intersection theory ... 
Nonequilibrium quantum field dynamics in the early Universe
(PhD thesis UiS;, Doctoral thesis, 2023)Inflation is the leading paradigm of early Universe cosmology. It provides compelling explanations of the observed nearhomogeneity of the cosmic microwave background (CMB) radiation, the spatial flatness of the Universe ...