Browsing Department of Mathematics by Title
Now showing items 350-369 of 937
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Inexact linear solvers for control volume discretizations in porous media
(Peer reviewed; Journal article, 2014-12-03)We discuss the construction ofmulti-level inexact linear solvers for control volume discretizations for porous media. The methodology forms a contrast to standard iterative solvers by utilizing an algebraic hierarchy of ... -
The influence of directional spreading on rogue waves triggered by abrupt depth transitions
(Journal article; Peer reviewed, 2023)An increased number of rogue waves, relative to standard distributions, can be induced by unidirectional waves passing over abrupt decreases in water depth. We investigate this phenomenon in a more general setting of ... -
Influence of natural convection in a porous medium when producing from borehole heat exchangers
(Peer reviewed; Journal article, 2013-08)Convection currents in a porous medium form when the medium is subject to sufficient heating from below (or equivalently, cooling from above) or when cooled or heated from the side. In the context of geothermal energy ... -
Injective braids, braided operads and double loop spaces
(Master thesis, 2011-06-01)We construct the category of B-spaces, which is a braided monoidal diagram category. This category is Quillen equivalent to the category of simplicial sets. The induced equivalence of homotopy categories maps a commutative ... -
Insights from cardiopulmonary exercise testing in pediatric patients with hypertrophic cardiomyopathy
(Journal article; Peer reviewed, 2021)The usefulness of cardiopulmonary exercise test (CPET) in adult hypertrophic cardiomyopathy (HCM) patients is well-known, whereas its role in pediatric HCM patients has not yet been explored. The present study investigates ... -
Integral conditions for Skorohod stochastic differential equations
(Statistical report no. 24, Research report, 1994-06) -
Integration by Riemann triangles
(Journal article; Peer reviewed, 2024)In this article we present a method of integration inspired by an example from Proofs Without Words II by Nelsen. Riemann rectangles under a curve are transformed into triangles. The limit of the collection of triangles ... -
Interdisciplinary and Transferable Concepts in Bioinformatics Education: Observations and Approaches From a UK MSc Course
(Journal article; Peer reviewed, 2022-02-24)Bioinformatics is a highly interdisciplinary subject, with substantial and growing influence in health, environmental science and society, and is utilised by scientists from many diverse academic backgrounds. Education in ... -
Interest rate models in Solvency II
(Master thesis, 2016-11-21)The best estimate of liabilities is important in the Solvency II framework. The best estimate of liabilities should be probability weighted average of future cash flows discounted to its present value. Life insurance ... -
Interfaces in a knowledge-based statistical system, as exemplified by Express
(Statistical report no. 29, Research report, 1996-07) -
Internal pressure gradient errors in sigma-coordinate ocean models: The finite volume and weighted approaches
(Master thesis, 2010-04-26)Terrain-following (sigma-coordinate) models are widely used. They are often advantageous when dealing with large variations in topography, and give an accurate representation of the bottom and top boundary layers. However, ... -
International Conference on Greenhouse Gas Technologies (GHGT-12) Models for CO2 injection with coupled thermal proce
(Peer reviewed; Journal article, 2014)Large-scale models of carbon dioxide (CO2) storage in geological formations must capture the relevant physical, chemical and thermodynamic processes that affect the migration and ultimate fate of injected CO2. These processes ... -
Intervall mellom fødslar studert ved "Phase Type Distributions"
(Master thesis, 2011-05-31)Omhandlar tida mellom første og andre barn studert ved "Phase Type Distributions". Ser på desse tidene som overlevelsestider og prøver å tilpasse ein phase type fordeling til datasettet me ser på. Brukar også glatting av ... -
Intracellular Energy Variability Modulates Cellular Decision-Making Capacity
(Journal article; Peer reviewed, 2019)Cells generate phenotypic diversity both during development and in response to stressful and changing environments, aiding survival. Functionally vital cell fate decisions from a range of phenotypic choices are made by ... -
Invariant connections, Lie algebra actions, and foundations of numerical integration on manifolds
(Journal article; Peer reviewed, 2020)Motivated by numerical integration on manifolds, we relate the algebraic properties of invariant connections to their geometric properties. Using this perspective, we generalize some classical results of Cartan and Nomizu ... -
Inversion of CSEM Data for Subsurface Structure Identification and Numerical Assessment of the Upstream Mobility Scheme
(Doctoral thesis, 2015-03-27)Part I In this part of the thesis, two different methodologies for solving the inverse problem of mapping the subsurface electric conductivity distribution using controlled source electromagnetic (CSEM) data are presented. ... -
Investigating population genetic structure in a highly mobile marine organism: The minke whale Balaenoptera acutorostrata acutorostrata in the North East Atlantic
(Peer reviewed; Journal article, 2014-09-30)Inferring the number of genetically distinct populations and their levels of connectivity is of key importance for the sustainable management and conservation of wildlife. This represents an extra challenge in the marine ... -
Investigating the Asymmetric Behavior of Oil Price Volatility Using Support Vector Regression
(Journal article; Peer reviewed, 2022)This paper investigates the asymmetric behavior of oil price volatility using different types of Asymmetric Power ARCH (APARCH) model. We compare the estimation and forecasting performance of the models estimated from the ... -
Investigation of long-wave model equations for a liquid CO2-seawater interface in deep water
(Master thesis, 2017-11-04) -
Investigations of the Kaup-Boussinesq model equations for water waves
(Master thesis, 2014-06-02)The Kaup-Boussinesq system is a coupled system of nonlinear partial differential equations which has been derived as a model for surface waves in the context of the Boussinesq scaling, and it has also been derived for an ...