Blar i Institutt for matematiske fag på tittel
Viser treff 1864-1883 av 2359
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A semi-discrete scheme derived from variational principles for global conservative solutions of a Camassa–Holm system
(Peer reviewed; Journal article, 2021)We define a kinetic and a potential energy such that the principle of stationary action from Lagrangian mechanics yields a Camassa–Holm system (2CH) as the governing equations. After discretizing these energies, we use the ... -
Semi-implicit fluid–structure interaction in biomedical applications
(Peer reviewed; Journal article, 2022)Fluid–structure interaction (FSI) incorporates effects of fluid flows on deformable solids and vice versa. Complex biomedical problems in clinical applications continue to challenge numerical algorithms, as incorporating ... -
Semi-Lagrangian methods and new integration schemes for convection-dominated problems
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:270, Doctoral thesis, 2011) -
Semivippereduksjon av algebraiske triangulerte kategorier
(Master thesis, 2019)Vi beskriver egenskapene til semivippereduksjon av triangulerte kategorier. Deretter regner vi ut semivippereduksjonen til den perfekte deriverte kategorien av en dg-algebra med hensyn på et kompakt presemivippeobjekt. Til ... -
Sense and reference of signifiers for elements of polygons
(Chapter, 2019)This paper is based mainly on a planning meeting involving teachers and researchers before classroom sessions in a Norwegian school where 7-8-year-old children are working with concepts connected to geometrical shapes. ... -
Sensitivitetsanalyse av SNOWPACK for norske forhold
(Master thesis, 2020)NVE (Norges Vassdrag- og Energidirektorat) ga i 2019 ut en rapport, ``Snøskredulykker vinteren 2018-2019'', som viste at det var vedvarende svake lag og flaksskred som var hovedårsaken til nesten alle dødsulykkene i den ... -
Separable equivalences, finitely generated cohomology and finite tensor categories
(Peer reviewed; Journal article, 2023)We show that finitely generated cohomology is invariant under separable equivalences for all algebras. As a result, we obtain a proof of the finite generation of cohomology for finite symmetric tensor categories in ... -
Sequence-guided approach to genotyping plant clones and species using polymorphic NB-ARC-related genes
(Journal article; Peer reviewed, 2018)Rapid and economical genotyping tools that can reliably distinguish species and intraspecific variations in plants can be powerful tools for biogeographical and ecological studies. Clones of the cosmopolitan duckweed ... -
Sequential information gathering schemes for spatial risk and decision analysis applications
(Journal article, 2018)Several risk and decision analysis applications are characterized by spatial elements: there are spatially dependent uncertain variables of interest, decisions are made at spatial locations, and there are opportunities for ... -
Sequential Markov random fields and Markov mesh random fields for modelling of geological structures
(Master thesis, 2006)We have been given a two-dimensional image of a geological structure. This structure is used to construct a three-dimensional statistical model, to be used as prior knowledge in the analysis of seismic data. We consider ... -
Sequential Markov random fields and Markov mesh random fields for modelling of geological structures
(Master thesis, 2006)We have been given a two-dimensional image of a geological structure. This structure is used to construct a three-dimensional statistical model, to be used as prior knowledge in the analysis of seismic data. We consider ... -
Serre's Conjecture: Finitely generated projective modules over polynomial rings
(Master thesis, 2013)We start by proving that all finitely generated projective R-modules, where R=k[x(1),...,x(n)] and k is a field, are stably free. Then we show that all stably free projective modules over a ring with the unimodular column ... -
Sexual obsessions in children and adolescents: Prevalence, clinical correlates, response to cognitive-behavior therapy and long-term follow up
(Peer reviewed; Journal article, 2022)Sexual obsessions occur in pediatric and adult OCD including thoughts about sexual acts with family members, sexually inappropriate behavior, or homosexual orientation. They may remain undiagnosed because of embarrassment ... -
Shape analysis for inverse problems
(Master thesis, 2021)Denne oppgaven undersøker problemet med å invertere Radon-transformasjonen av en form, hvor vi kun har tilgjengelig data fra et fåtall vinkler i et begrenset intervall. For å løse dette foreslår vi en regulariseringsfunksjonal, ... -
Shape analysis on homogeneous spaces: a generalised SRVT framework
(Chapter, 2017)Shape analysis is ubiquitous in problems of pattern and object recognition and has developed considerably in the last decade. The use of shapes is natural in applications where one wants to compare curves independently of ... -
Shape analysis on lie groups and homogeneous spaces
(Journal article, 2017)In this paper we are concerned with the approach to shape analysis based on the so called Square Root Velocity Transform (SRVT). We propose a generalisation of the SRVT from Euclidean spaces to shape spaces of curves on ... -
Shapley Values for dependent features using Divisive Clustering
(Master thesis, 2022)Formålet med denne oppgave er å anvende den nye metoden DivisiveShapApprox på å approksimere SHAP-verdier og å sammenlikne dens prestasjoner med KernelSHAP-metoden. Det er for tiden mange metoder som gjør det mulig å ... -
A shared parameter model accounting for non-ignorable missing data due to dropout - Modelling of blood pressure based on the HUNT Study
(Master thesis, 2020)Abstract In this thesis, a shared parameter model is suggested to account for missing data not at random (MNAR) due to dropout in follow-up studies. The proposed model is motivated by and evaluated for a large follow-up ... -
Sharp norm estimates for composition operators and Hilbert-type inequalities
(Journal article; Peer reviewed, 2017)Let H 2 denote the Hardy space of Dirichlet series f ( s ) = ∑ n ⩾ 1 a n n − s with square summable coefficients and suppose that φ is a symbol generating a composition operator on H 2 by C φ ( f ) = f ∘ φ . Let ζ denote ... -
Shifted Substitution in Non-Commutative Multivariate Power Series with a View Toward Free Probability
(Peer reviewed; Journal article, 2023)We study a particular group law on formal power series in non-commuting variables induced by their interpretation as linear forms on a suitable graded connected word Hopf algebra. This group law is left-linear and is ...