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Geometric integration of nonlinear wave equations
(Master thesis, 2007)We give an short introduction to the Camassa-Holm equation and its travelling wave solutions. Many well-known equations in mathematical physics describe geodesic flows on appropriate Lie groups. The choice of group and ... -
Geometric Integration of ODEs Using Multiple Quadratic Auxiliary Variables
(Journal article; Peer reviewed, 2022) -
Geometric pushforward in Hodge filtered complex cobordism and secondary invariants
(Journal article; Peer reviewed, 2024)We construct a functorial pushforward homomorphism in geometric Hodge filtered complex cobordism along proper holomorphic maps between arbitrary complex manifolds. This significantly improves previous results on such ... -
Geometric reduction and the three body problem
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:211, Doctoral thesis, 2012)This dissertation investigates a particular reduction of the three body problem, using a combination of Riemannian geometry and geometric invariant theory of three body motions in Euclidean space. Our point of departure ... -
Geometric Shape Analysis in Computer Animation
(Doctoral thesis at NTNU;2015:242, Doctoral thesis, 2015) -
Geometry-Based Modeling of Wideband Industrial Indoor Radio Propagation Channels
(Chapter, 2015)In this paper, we present a geometrical scattering model for a typical class of industrial indoor environments. The proposed industrial reference model takes into account scattering components arising from metallic structures ... -
Geostatistical Analysis of DHS Data: Accounting for Random Displacement of Survey Locations
(Doctoral theses at NTNU;2023:184, Doctoral thesis, 2023) -
Geostatistical Modeling under Positional Uncertainty
(Master thesis, 2023)I denne oppgaven undersøker vi posisjonell usikkerhet i geostatistisk modellering. Et sentralt eksempel på posisjonell usikkerhet er bruken av geografisk maskering (geomaskering) ment til å beskytte personvern. Geomaskering ... -
A geostatistical spatially varying coefficient model for mean annual runoff that incorporates process-based simulations and short records
(Peer reviewed; Journal article, 2022)We present a Bayesian geostatistical model for mean annual runoff that incorporates simulations from a process-based hydrological model. The simulations are treated as a covariate and the regression coefficient is modeled ... -
Global Bifurcation of a Nonlocal Equation
(Master thesis, 2022)Vi studerer en dispersiv likning av typen fraksjonell Korteweg–de Vrie [38, 46] med en ikke-lokal ikkelineæritet som er en Coifman–Meyer operator [14], som når betraktet i stabile variabler antar formen -µϕ + Λ^s ϕ + ϕ Λ^r ... -
Global bifurcation of waves with multiple critical layers
(Journal article; Peer reviewed, 2020)Analytic global bifurcation theory is used to construct a large variety of families of steady periodic two-dimensional gravity water waves with real-analytic vorticity distributions, propagating in an incompressible fluid. ... -
Global Buckling Reliability Analysis of Slender Network Arch Bridges: An Application of Monte Carlo-Based Estimation by Optimized Fitting
(Chapter, 2017)Network arch bridges are extremely slender bridge structures with a very efficient 16 load-carrying structure. This configuration can carry loads that are several times greater 17 than traditional tied-arch bridges with ... -
Global dissipative solutions of the two-component Camassa-Holm system for initial data with nonvanishing asymptotics
(Journal article, 2014)We show the existence of a global weak dissipative solution of the Cauchy problem for the two-component Camassa–Holm (2CH) system on the line with nonvanishing and distinct spatial asymptotics. The influence from the second ... -
Global existence of dissipative solutions to the Camassa--Holm equation with transport noise
(Peer reviewed; Journal article, 2023)We consider a nonlinear stochastic partial differential equation (SPDE) that takes the form of the Camassa–Holm equation perturbed by a convective, position-dependent, noise term. We establish the first global-in-time ... -
Global Models for Time Series Forecasting With Applications to Zero-Shot Forecasting
(Master thesis, 2021)Globale tidsrekkemodeller er tilpasset til et sett med tidsrekker. Dette er i motsetning til lokale tidsrekkemodeller som er tilpasset individuelle tidsrekker. En global tilnærming kan motvirke overtilpasning siden vi ... -
Global Spore Sampling Project: A global, standardized dataset of airborne fungal DNA
(Journal article; Peer reviewed, 2024)Novel methods for sampling and characterizing biodiversity hold great promise for re-evaluating patterns of life across the planet. The sampling of airborne spores with a cyclone sampler, and the sequencing of their DNA, ... -
Global well-posedness of the viscous Camassa–Holm equation with gradient noise
(Peer reviewed; Journal article, 2022)We analyse a nonlinear stochastic partial differential equation that corresponds to a viscous shallow water equation (of the Camassa–Holm type) perturbed by a convective, position-dependent noise term. We establish the ... -
Going relative with Maurice—a survey
(Journal article, 2018) -
Gorenstein weak global dimension is symmetric
(Peer reviewed; Journal article, 2021)We study the Gorenstein weak global dimension of associative rings and its relation to the Gorenstein global dimension. In particular, we prove the conjecture that the Gorenstein weak global dimension is a left-right ... -
GPU Computing with Python: Performance, Energy Efficiency and Usability
(Journal article; Peer reviewed, 2020)In this work, we examine the performance, energy efficiency, and usability when using Python for developing high-performance computing codes running on the graphics processing unit (GPU). We investigate the portability of ...