Blar i Department of Mathematics på tittel
Viser treff 606-625 av 1047
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Nonlinear propagation and interaction of collinear sound beams
(Department of Applied Mathematics report, Research report, 1989-10) -
Nonlinear spectral analysis via the local Gaussian correlation
(Journal article, 2017)The spectral distribution \(f(\omega)\) of a stationary time series \(\{Y_t\}_{t\in\mathbb{Z}}\) can be used to investigate whether or not periodic structures are present in \(\{Y_t\}_{t\in\mathbb{Z}}\), but \(f(\omega)\) ... -
Nonlinear Spectral Analysis: A Local Gaussian Approach
(Journal article; Peer reviewed, 2022)The spectral distribution f(ω) of a stationary time series {Yt}t∈Z can be used to investigate whether or not periodic structures are present in {Yt}t∈Z, but f(ω) has some limitations due to its dependence on the autocovariances ... -
Nonlinear Spectrum Analysis based on the Local Gaussian Correlation and Model Selection for Copulas
(Doctoral thesis, 2017-11-20) -
Nonlocal Models for Undular Bores
(Master thesis, 2022-06-01) -
The Norwegian Stock Market: - A Local Gaussian Perspective
(Master thesis, 2013-06-03)In this thesis, using daily returns from 18 stocks, oil price, exchange rates and the main index of the Oslo Stock Exchange over a period of 5 years, we investigate how the Local Gaussian Correlation can be used to describe ... -
A note on Front tracking and the Equivalence between Viscosity Solutions of Hamilton-Jacobi Equations And Entropy Solutions of scalar Conservation Laws.
(Department of Applied Mathematics report, Research report, 2000-01) -
A Note on Portfolio Management under non-Gaussian Logreturns
(Department of Applied Mathematics report, Research report, 2000-02) -
A Note on Portfolio oprimization in a levy Market with local Substitution and habit formation
(Department of Applied Mathematics report, Research report, 2000-05) -
A note on Severi varieties of nodal curves on Enriques surfaces
(Journal article; Peer reviewed, 2020)Let |L| be a linear system on a smooth complex Enriques surface S whose general member is a smooth and irreducible curve of genus p, with L2 > 0, and let V|L|,δ(S) be the Severi variety of irreducible δ-nodal curves in ... -
A Note on the Stability of Steady Inviscid Helical Gas Flows
(Department of Applied Mathematics report, Research report, 1976-01) -
A Note on the Wave Field in the Surface Zone
(Department of Applied Mathematics report, Research report, 1991-07) -
A note on the Wick product
(Statistical report no. 23, Research report, 1993-03) -
Nowcasting COVID-19 incidence indicators during the Italian first outbreak
(Journal article; Peer reviewed, 2021)A novel parametric regression model is proposed to fit incidence data typically collected during epidemics. The proposal is motivated by real-time monitoring and short-term forecasting of the main epidemiological indicators ... -
A numerical approach to ruin probability in finite time for fitted models with investment
(Journal article, 2012)In this paper we present a numerical method for solving a partial integro-differential equation (PIDE) associated with ruin probability, when the surplus is continuously invested in stochastic assets. The method uses ... -
Numerical bifurcation for the capillary Whitham equation
(Journal article, 2017-03)The so-called Whitham equation arises in the modeling of free surface water waves, and combines a generic nonlinear quadratic term with the exact linear dispersion relation for gravity waves on the free surface of a fluid ... -
Numerical computation of a finite amplitude sound beam
(Department of Applied Mathematics report no. 81, Research report, 1986-11) -
Numerical Investigation on the Fixed-Stress Splitting Scheme for Biot’s Equations: Optimality of the Tuning Parameter
(Peer reviewed; Journal article, 2019)We study the numerical solution of the quasi-static linear Biot equations solved iteratively by the fixed-stress splitting scheme. In each iteration the mechanical and flow problems are decoupled, where the flow problem ... -
Numerical Methods for Conservation Laws with a Discontinuous Flux Function
(Master thesis, 2011-06-01)When simulating two-phase flow in a porous medium, numerical methods are used to solve the equations of flow, called conservation laws. In the industry, this is done by a reservoir simulator, and the most widely used method ... -
Numerical methods for coupled processes in fractured porous media
(Doctoral thesis, 2019-11-15)Numerical simulations have become essential in the planning and execution of operations in the subsurface, whether this is geothermal energy production or storage, carbon sequestration, petroleum production, or wastewater ...