Blar i Institutt for matematiske fag på dokumenttype "Peer reviewed"
Viser treff 1-20 av 940
-
A 2-dimensional shape optimization problem for tree branches
(Peer reviewed; Journal article, 2020)The paper is concerned with a shape optimization problem, where the functional to be maximized describes the total sunlight collected by a distribution of tree leaves, minus the cost for transporting water and nutrient ... -
A Bayesian model for lithology/fluid class prediction using a Markov mesh prior fitted from a training image
(Journal article; Peer reviewed, 2019)We consider a Bayesian model for inversion of observed amplitude variation with offset data into lithology/fluid classes, and study in particular how the choice of prior distribution for the lithology/fluid classes influences ... -
A Bayesian spatial assimilation scheme for snow coverage observations in a gridded snow model
(Journal article; Peer reviewed, 2006)A method for assimilating remotely sensed snow covered area (SCA) into the snow subroutine of a grid distributed precipitation-runoff model (PRM) is presented. The PRM is assumed to simulate the snow state in each grid ... -
A Class of Tests for Trend in Time Censored Recurrent Event Data
(Journal article; Peer reviewed, 2019)Statistical tests for trend in recurrent event data not following a Poisson process are generally constructed for event censored data. However, time censored data are more frequently encountered in practice. In this article, ... -
A comprehensive evaluation of predictive performance of 33 species distribution models at species and community levels
(Journal article; Peer reviewed, 2019)A large array of species distribution model (SDM) approaches has been developed for explaining and predicting the occurrences of individual species or species assemblages. Given the wealth of existing models, it is unclear ... -
A control problem related to the parabolic dominative p-Laplace equation
(Journal article; Peer reviewed, 2019)We show that value functions of a certain time-dependent control problem in Ω × (0, T), with a continuous payoff F on the parabolic boundary, converge uniformly to the viscosity solution of the parabolic dominative p-Laplace ... -
A Convergent Crank–Nicolson Galerkin Scheme for the Benjamin–Ono Equation
(Journal article; Peer reviewed, 2018)In this paper we prove the convergence of a Crank–Nicolson type Galerkin finite element scheme for the initial value problem associated to the Benjamin–Ono equation. The proof is based on a recent result for a similar ... -
A Domain with Non-plurisubharmonic Squeezing Function
(Journal article; Peer reviewed, 2018)We construct a strictly pseudoconvex domain with smooth boundary whose squeezing function is not plurisubharmonic. -
A full-scale 3D Vs 2.5D Vs 2D analysis of flow pattern and forces for an industrial-scale 5MW NREL reference wind-turbine
(Journal article; Peer reviewed, 2017)NREL 5MW reference turbine, which is a popular, realistic and standardized industrial scale offshore turbine model, is used in this work for understanding the associated flow-complexities and for testing models. For such ... -
A fully implicit WENO scheme on stratigraphic and unstructured polyhedral grids
(Journal article; Peer reviewed, 2019)Many authors have used higher-order spatial discretizations to reduce numerical diffusion, which can be particularly pronounced when simulating EOR processes involving active chemical substances that are transported by ... -
A Lagrangian view on complete integrability of the conservative Camassa– Holm flow
(Journal article; Peer reviewed, 2017)We show how the change from Eulerian to Lagrangian coordinates for the two-component Camassa–Holm system can be understood in terms of certain reparametrizations of the underlying isospectral problem. The respective ... -
A Lichnerowicz estimate for the spectral gap of a sub-Laplacian
(Journal article; Peer reviewed, 2019)Abstract: For a second order operator on a compact manifold satisfying the strong Hörmander condition, we give a bound for the spectral gap analogous to the Lichnerowicz estimate for the Laplacian of a Riemannian manifold. ... -
‘A lifebuoy’ and ‘a waste of time’: patients’ varying experiences of multidisciplinary pain centre treatment- a qualitative study
(Journal article; Peer reviewed, 2019)Background: The recognition of chronic pain as a biopsychosocial phenomenon has led to the establishment of multidisciplinary pain treatment facilities, such as pain centres. Previous studies have focussed on inpatient, ... -
A Lipschitz metric for the Hunter-Saxton equation
(Journal article; Peer reviewed, 2019)We analyze stability of conservative solutions of the Cauchy problem on the line for the (integrated) Hunter–Saxton (HS) equation. Generically, the solutions of the HS equation develop singularities with steep gradients ... -
A Mass-Conservative Sequential Implicit Multiscale Method for General Compositional Problems
(Journal article; Peer reviewed, 2018)Compositional simulation is necessary for a wide variety of reservoir-simulation applications, and it is especially valuable for accurate modeling of near-miscible gas injection for enhanced oil recovery. Because the ... -
A methodology for instructional design in mathematics—with the generic and epistemic student at the centre
(Journal article; Peer reviewed, 2017)This theoretical paper presents a methodology for instructional design in mathematics. It is a theoretical analysis of a proposed model for instructional design, where tasks are embedded in situations that preserve meaning ... -
A model for instructional design in mathematics implemented in teacher education
(Journal article; Peer reviewed, 2018)This paper presents a model for instructional design in mathematics and reports from student teachers’ experimentation with it in secondary school. The model is framed within the theory of didactical situations in mathematics. ... -
A modelling approach to assessing the timescale uncertainties in proxy series with chronological errors.
(Journal article; Peer reviewed, 2012) -
A multiple-try Metropolis–Hastings algorithm with tailored proposals
(Journal article; Peer reviewed, 2019)We present a new multiple-try Metropolis–Hastings algorithm designed to be especially beneficial when a tailored proposal distribution is available. The algorithm is based on a given acyclic graph G, where one of the nodes ... -
A non-local approach to waves of maximal height for the Degasperis-Procesi equation
(Journal article; Peer reviewed, 2019)We consider the non-local formulation of the Degasperis-Procesi equation , where L is the non-local Fourier multiplier operator with symbol . We show that all , pointwise travelling-wave solutions are bounded above by the ...