Blar i Department of Mathematics and Physics (TN-IMF) på tittel
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Elementær grafteori: Stier og relaterte egenskaper
(Bachelor thesis, 2022)I denne oppgaven skal jeg presentere generell grafteori, og hvordan en kan anvende dette i klasserommet. Til å begynne med presenterer jeg generell teori og definisjoner innen grafer, før jeg tar for meg to ulike eksempler ... -
En introdukjsion til kodeteori og AG koder
(Master thesis, 2021)Hensikten med denne masteroppgaven er å gi en generell innføring til kodingsteori og feilrettingskoder. Oppgaven benytter seg av boka CODING THEORY et første kurs av Henk C.A. van Tilborg for å beskrive og vise hvordan ... -
En lærers undervisningsarbeid knyttet til elevers arbeid med kontekstbaserte matematikkoppgaver gjennom dialogbasert undervisning på 6.trinn.
(Masteroppgave/UIS-HF-IGIS/2020;, Master thesis, 2020-06-12)Dialogbasert undervisning har fått en større plass i forskningen på matematikkundervisning de siste årene, noe som også har påvirket utformingen av den nye læreplanen som iverksettes høsten 2020. I dialogbasert undervisning ... -
En sammenligning av prissvingninger mellom Brent råolje og drivstoffpriser i Stavanger - en algoritmisk modell for tanking
(Master thesis, 2021)Denne avhandlingen undersøker og sammenligner volatiliteten i drivstoffmarkedet i Stavanger og Brent råolje. Bensin- og dieselpriser er samlet inn fra bensinstasjoner i Stavanger i 2020 og 2021, og brukes til oppgavens ... -
En statistisk analyse av strømprisen i NO2
(Bachelor thesis, 2022)Denne oppgaven ser på hva som påvirker strømprisen i prisområdet NO2 på strømbørsen Nord Pool. NO2 er prisområdet til Sørvest-Norge. Strømprisen i Norge bestemmes av tilbud og etterspørsel. Tilbudet av strøm avhenger av hvor ... -
Environmental risk assessment of combined effects in aquatic ecotoxicology: A discussion paper
(Peer reviewed; Journal article, 2014)Environmental regulatory edicts within the EU, such as the regulatory framework for chemicals REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals), the Water Framework Directive (WFD), and the Marine ... -
EPW Cubes
(Journal article; Peer reviewed, 2016-08)We construct a new 20-dimensional family of projective six-dimensional irreducible holomorphic symplectic manifolds. The elements of this family are deformation equivalent with the Hilbert scheme of three points on a K3 ... -
Equivalences between Calabi–Yau manifolds and roofs of projective bundles
(PhD thesis UiS;, Doctoral thesis, 2021-04)It is conjectured that many birational transformations, called K-inequalities, have a categorical counterpart in terms of an embedding of derived categories. In the special case of simple K-equivalence (or more generally ... -
Error Correcting Codes and BCH codes
(Master thesis, 2021)One of the central topics in coding theory is the study of error detection and correction, where codes are used to ensure that the correct information can be extracted from a message or storage, even if an error occurs ... -
Essays in statistics and econometrics
(PhD thesis UiS; 523, Doctoral thesis, 2020-05)Helped by cheaper data computation, companies make more use of sophisticated statistical analysis in decision making and economic management. In the dissertation I evaluate and develop statistical methods and apply them ... -
Estimating and Forecasting of Dynamic linear Gaussian State Space Models for Commodity Futures
(Masteroppgave/UIS-TN-IMF/2019;, Master thesis, 2019-06-14)The Kalman filter is used to estimate the parameters and forecast the observations in a dynamic Nelson-Siegel model a linear Gaussian state space representation for futures contracts on the commodities oil, natural gas, ... -
Estimating the Competitive Storage Model with Stochastic Trends in Commodity Prices
(Peer reviewed; Journal article, 2021)We propose a State-Space Model (SSM) for commodity prices that combines the competitive storage model with a stochastic trend. This approach fits into the economic rationality of storage decisions and adds to previous ... -
Evidence for quark-matter cores in massive neutron stars
(Peer reviewed; Journal article, 2020-06)The theory governing the strong nuclear force—quantum chromodynamics—predicts that at sufficiently high energy densities, hadronic nuclear matter undergoes a deconfinement transition to a new phase of quarks and gluons1. ... -
Exact Solutions of the Field Equations for Empty Space in the Nash Gravitational Theory
(Journal article; Peer reviewed, 2017-02)John Nash has proposed a new theory of gravity. We define a Nash-tensor equal to the curvature tensor appearing in the Nash field equations for empty space, and calculate its components for two cases: 1. A static, spherically ... -
Exceptional nonrelativistic effective field theories with enhanced symmetries
(Peer reviewed; Journal article, 2021)We initiate the classification of nonrelativistic effective field theories (EFTs) for Nambu-Goldstone (NG) bosons, possessing a set of redundant, coordinate-dependent symmetries. Similarly to the relativistic case, such ... -
The experimental and theoretical investigation of single-crystal diamond compound refractive lenses (CRLs)
(PhD theses (TN-IMF);527, Doctoral thesis, 2020-06)In the field of X-ray optics, compound refractive lenses (usually termed CRLs) function as a focusing device for hard X-rays and they are believed to possess a lot of prominent advantages over other focusing devices, such ... -
Exploits, advances, and challenges benefiting beyond Li-ion battery technologies
(Peer reviewed; Journal article, 2019)The battery market is undergoing quick expansion owing to the urgent demand for mobile devices, electric vehicles and energy storage systems, convoying the current energy transition. Beyond Li-ion batteries are of high ... -
Exploring modern simulation algorithms for complex Langevin
(Master thesis, 2022)Using modern simulation algorithms to calculate expectation values of quantum systems. -
Families of Proper Holomorphic Embeddings and Carleman-Type Theorem with parameters
(Peer reviewed; Journal article, 2023)We solve the problem of simultaneously embedding properly holomorphically into C2 a whole family of n-connected domains Omega_r in P1 such that none of the components of P1 \ Omega_r reduces to a point, by constructing a ... -
Fast and robust Bayesian inference using Gaussian processes with GPry
(Peer reviewed; Journal article, 2023)We present the GPry algorithm for fast Bayesian inference of general (non-Gaussian) posteriors with a moderate number of parameters. GPry does not need any pre-training, special hardware such as GPUs, and is intended as a ...