Blar i Institutt for matematiske fag på tittel
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Riesz bases of exponentials, Meyer's quasicrystals and bounded remainder sets
(Doctoral thesis at NTNU;2015:259, Doctoral thesis, 2015) -
Riesz projection and bounded mean oscillation for Dirichlet series
(Peer reviewed; Journal article, 2022)We prove that the norm of the Riesz projection from L∞(Tn) to Lp(Tn) is 1 for all n≥1 only if p≤2, thus solving a problem posed by Marzo and Seip in 2011. This shows that Hp(T∞) does not contain the dual space of H1(T∞) ... -
Right Gröbner Basis Theory and Systems of Equations Over Algebras
(Bachelor thesis, 2023)Målet med denne bachelor-oppgaven er å gi en metode for å finne løsninger av homogene systemer av lineære ligninger over veialgebraer ved bruk av høyre Gröbnerbasis-steori. Den vil introdusere tosidige Gröbnerbasiser og ... -
Rigidity of twisted groupoid Lp-operator algebras
(Peer reviewed; Journal article, 2023)In this paper we study the isomorphism problem for reduced twisted group and groupoid Lp-operator algebras. For a locally compact group G and a continuous 2-cocycle σ we define the reduced σ-twisted Lp-operator algebra Fp ... -
Riparian vegetation provides crucial shelter for resting otters in a human-dominated landscape
(Journal article; Peer reviewed, 2019)The riparian vegetation belt is one of the few remaining structures that provide coverage for wildlife in many anthropogenic landscapes. It provides shelter for many species and functions as corridors for dispersal. However, ... -
Risk Factors for Breast, Uterine and Ovarian Cancer: A competing Risks Analysis
(Master thesis, 2011)A competing risks situation arises when a unit can fail due to several distinct failure types. In a competing risk situation, standard techniques from survival analysis may lead to incorrect and biased results. In this ... -
Risk Prediction of Cardiovascular Disease with Statistical Learning Methods
(Master thesis, 2021)I denne oppgaven ser vi på potensialet for bruk av metoder fra statistisk læring til å beregne risikoen for hjerte- og karsykdommer, ved å ta i bruk data fra Helseundersøkelsen i Trøndelag, HUNT. Hovedmålet med oppgaven ... -
Road works ahead: the journey of an innovative cross-campus hybrid learning space navigating higher education institutions’ organizational setbacks
(Journal article; Peer reviewed, 2024)The most recent UN publication on Sustainable Development Goals (SDGs), which covers issues related to socioeconomic, environmental, and technological development on a global scale towards 2030, has expanded its focus to ... -
Robust Modelling of Additive and Non-additive Variation with Intuitive Inclusion of Expert Knowledge
(Peer reviewed; Journal article, 2020)We propose a novel Bayesian approach that robustifies genomic modeling by leveraging expert knowledge (EK) through prior distributions. The central component is the hierarchical decomposition of phenotypic variation into ... -
Robust nonlinear Newton solver with adaptive interface-localized trust regions
(Journal article; Peer reviewed, 2019)The interplay of multiphase flow effects and PVT behavior encountered in reservoir simulations often gives strongly coupled nonlinear systems that are challenging to solve numerically. In a sequentially implicit method, ... -
Robust numerical methods for nonlocal (and local) equations of porous medium type. Part I: Theory
(Journal article; Peer reviewed, 2019)We develop a unified and easy to use framework to study robust fully discrete numerical methods for nonlinear degenerate diffusion equations $\partial_t u-\mathfrak{L}^{\sigma,\mu}[\varphi(u)]=f \;\text{in}\; \mathbb{R}^ ... -
Robust numerical methods for nonlocal (and local) equations of porous medium type. Part II: Schemes and experiments
(Journal article; Peer reviewed, 2018)We develop a unified and easy to use framework to study robust fully discrete numerical methods for nonlinear degenerate diffusion equations $\partial_t u-\mathfrak{L}[\varphi(u)]=f(x,t)$ in $\mathbb{R}^N\times(0,T),$ where ... -
Robust online active learning
(Journal article; Peer reviewed, 2023)In many industrial applications, obtaining labeled observations is not straightforward as it often requires the intervention of human experts or the use of expensive testing equipment. In these circumstances, active learning ... -
Robustifying Bayesian Hierarchical Models Using Intuitive Prior Elicitation
(Doctoral theses at NTNU;2021:215, Doctoral thesis, 2021) -
Robustness in supply chain management and design
(Master thesis, 2010)We have studied a supply chain for delivering biomass to heating plants where there are uncertainty in demand. Design of such supply chains considers finding the optimal terminal structure and an optimal inventory policy. ... -
Robustness of screening designs with a small number of runs
(Doctoral theses at NTNU;2019:162, Doctoral thesis, 2019) -
Rock Classification Using Multivariate Analysis of Measurement While Drilling Data: Towards a Better Sampling Strategy
(Journal article; Peer reviewed, 2018)Measurement while drilling (MWD) data are gathered during drilling operations and can provide information about the strength of the rock penetrated by the boreholes. In this paper MWD data from a marble open-pit operation ... -
The Role of Fourier Series in Mathematics and in Signal Theory
(Journal article; Peer reviewed, 2021)This paper presents a praxeological analysis, based on ATD (Anthropological Theory of the Didactic), of the topic of Fourier series, as this topic is introduced and used in mathematics and in electrical engineering, more ... -
The role of gentle algebras in higher homological algebra
(Peer reviewed; Journal article, 2022)We investigate the role of gentle algebras in higher homological algebra. In the first part of the paper, we show that if the module category of a gentle algebra Λ contains a d-cluster tilting subcategory for some d≥2 , ... -
Romlig interpolering av nedbør
(Master thesis, 2006)I denne oppgaven brukes enkel kriging til å interpolere nedbørsmålinger med tidsoppløsning ett døgn hentet fra 28 nedbørsstasjoner som befinner seg på og omkring Hardangervidda. Historiske tidsserier fra nedbørsstasjonene ...