Browsing Matematisk institutt by Title
Now showing items 1472-1491 of 3782
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(Research report / Forskningsrapport, 1974)
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(Master thesis / Masteroppgave, 2022)We study the evolution of a three dimensional wave train subject to nonlinear modulation and damping. In particular, we are interested in gaining insight about the impact of nonlinear modulation and damping on the frequency ...
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(Master thesis / Masteroppgave, 2023)Current treatment regimens have been effective in suppressing the progression of HIV. They prevent transmission and support people living with HIV to lead healthy lives. However, there are numerous clinical, social, and ...
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(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)Kinetic simulation results are presented to study the response of multi-Needle Langmuir Probes of the type used on many satellites. Simulations of isolated probes are used to parametrize the current collected as a function ...
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(Research report / Forskningsrapport, 1987)
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(Master thesis / Masteroppgave, 2011)The second World War (WWII) involved most of the world's nations and lasted from 1939-1945. Several countries were occupied during this period. One of these countries was Norway, which was occupied during a five year period ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)Nocturnal low-level jets (LLJs) are defined as relative maxima in the vertical profile of the horizontal wind speed at the top of the stable boundary layer. Such peaks constitute major power resources for wind turbines. ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Increased astrocytic Ca 2+ signaling has been shown in Alzheimer’s disease mouse models, but to date no reports have characterized behaviorally induced astrocytic Ca 2+ signaling in such mice. Here, we employ an event-based ...
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(Master thesis / Masteroppgave, 2015)The aim of this work has been to implement a range of Large Eddy Simulation (LES) turbulence models into Oasis, a Computational Fluid Dynamic (CFD) solver for incompressible flows based on the Finite Element method (FEM), ...
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(Research report / Forskningsrapport, 2001)In the present report we describe the geometrically nonlinear method for orthotropic (composite) materials that is implemented using the commercial C++ library Diffpack. The implementation is based on a module dealing with ...
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Implementation of a New Concept of Duration with respect to the Stochastic Fluctuations of the Yield SurfaceRestricted Access (Master thesis / Masteroppgave, 2015)One objective of this Master thesis is to give an overview and discussion of the most important stochastic models for the dynamics of the yield surface. Since interest rates are of stochastic nature, and e.g. insurance ...
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(Research report / Forskningsrapport, 2004)A system for displaying tidal currents in an electronic chart display and information system (ECDIS) has been developed and implemented in compliance with the standards of the International Hydrographic Organization (IHO). ...
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(Research report / Forskningsrapport, 2005)Various methods for approximating the non-linear advection terms in a high resolution tidal model with complex coastal boundaries have been implemented and tested. The model, driven by the dominant <I>M</I><SUB>2</SUB> ...
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(Research report / Forskningsrapport, 1997)
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(Doctoral thesis / Doktoravhandling, 2012)In the process of modeling, the agent has to make a number of decisions. Therefore two agents can set up different models. This thesis compares the influence of different model choices to stochastic control theory and ...
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THE IMPLIED RISK AVERSION FROM UTILITY INDIFFERENCE OPTION PRICING IN A STOCHASTIC VOLATILITY MODEL (Research report / Forskningsrapport, 2007)In recent decades, there has been a growing interest for utility indifference based approaches to solve the question of pricing of derivatives in incomplete markets. In this paper we consider a stochastic volatility model ...
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(Research report / Forskningsrapport, 2004)In this paper we review the theory of importance measures for multicomponent binary systems starting out with the classical Birnbaum measure. We then move on to various time independent measures for systems which do not ...
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(Master thesis / Masteroppgave, 2020)Several examples of use of four importance measures for repairable multistate systems. The measures are based on the classical Birnbaum reliability importance measure, and can be characterised with respect to two features. ...
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(Chapter / Bokkapittel / PublishedVersion; Peer reviewed, 2021)Within the field of reliability multistate systems represent a natural extension of the classical binary approach. For an extensive introduction to this topic, see Natvig (2011b). Repairable multistate systems quickly ...
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(Master thesis / Masteroppgave, 2010)We consider first-order finite difference schemes for a nonlinear degenerate convection-diffusion equation in one space dimension, and prove an $L^1_{loc}$ error estimate. Precisely, we prove that the $L^1_{loc}$ difference ...