Browsing Department of Mathematics by Title
Now showing items 784-803 of 934
-
Some New Approaches to Smoothing: Convolution Estimators in Regression Models and Backfitting in Panels of Time Series
(Doctoral thesis, 2005-11-18) -
Some new constructions of asymptotically good code sequences
(Master thesis, 2006) -
Some notes on nonlinear cointegration: A partial review with some novel perspectives
(Journal article; Peer reviewed, 2020)Some recent work on the analysis of nonlinear and nonstationary time series models is reviewed. A couple of novel results are obtained in extending nonlinear cointegrating regression models to a time series situation. All ... -
Some Regularity Results for Certain Weakly Quasiregular Mappings on the Heisenberg Group and Elliptic Equations
(Master thesis, 2011-06-01)The thesis is organized as follows. In chapter 1, we set up a higher integrability result for the horizontal part of certain weakly quasiregular maps on the Heisenberg group. Unlike the Euclidean case, the exponential of ... -
Sorting of mitochondrial and plastid heteroplasmy in Arabidopsis is extremely rapid and depends on MSH1 activity
(Journal article; Peer reviewed, 2022)The fate of new mitochondrial and plastid mutations depends on their ability to persist and spread among the numerous organellar genome copies within a cell (heteroplasmy). The extent to which heteroplasmies are transmitted ... -
A Space Decomposition Method for Parabolic Equations
(Department of Applied Mathematics report, Research report, 1997-02) -
Space decompostition Methods For nonsymmetric parabolic Problems
(Department of Applied Mathematics report, Research report, 1999-11) -
Sparse Bayesian learning methods and statistical survival models
(Doctoral thesis, 2023-06-02)Med utviklinga av avanserte datainnsamlingsteknikkar og digitalisering, har omfanget av tilgjengelig data i ulike fagfelt auka enormt. Det blir difor stadig viktigare med effektive og nøyaktige algoritmar innan statistisk ... -
Sparse Dowker nerves
(Peer reviewed; Journal article, 2019-06-29)We propose sparse versions of filtered simplicial complexes used to compute persistent homology of point clouds and of networks. In particular, we extend the Sparse Čech Complex of Cavanna et al. (A geometric perspective ... -
Sparse-Data Based 3D Surface Reconstruction for Cartoon and Map
(Chapter, 2018)A model combining the first-order and the second-order variational regularizations for the purpose of 3D surface reconstruction based on 2D sparse data is proposed. The model includes a hybrid fidelity constraint which ... -
Spatial Prediction with Long Short-Term Memory Models
(Master thesis, 2022-01-11) -
Spatio-Temporal Generalized Autoregressive Conditional Heteroskedasticity Models
(Master thesis, 2016-06-02)This thesis presents a spatio-temporal extension of the GARCH process with a specific spatial dependence structure. Different simulation and estimation techniques are developed. Assuming a circular spatial structure at ... -
Spectral evolution and probability distributions of surface ocean gravity waves and extreme waves
(Doctoral thesis, 2005-11-01) -
Spin-off learning about epidemics from modelling with differential equations
(Journal article, 2021)This article presents a case study of students modelling epidemics with differential equation systems. The study introduces spin-off learning as a process intertwined with learning mathematics and examines the conditions ... -
Square-free modules and ideals: Brill–Noether theory, polarizations, and deformations.
(Doctoral thesis, 2013-05-24) -
The Stability and Instability of Solitary Waves
(Doctoral thesis, 2010-04-23) -
Stability Issues of Entropy-Stable and/or Split-form High-order Schemes: Analysis of Linear Stability
(Journal article; Peer reviewed, 2022)The focus of the present research is on the analysis of local energy stability of high-order (including split-form) summation-by-parts methods, with e.g. two-point entropy-conserving fluxes, approximating non-linear ... -
Stable cell-centered finite volume discretization for biot equations
(Peer reviewed; Journal article, 2016-03-29)In this paper we discuss a new discretization for the Biot equations. The discretization treats the coupled system of deformation and flow directly, as opposed to combining discretizations for the two separate subproblems. ... -
Stable mixed finite elements for linear elasticity with thin inclusions
(Journal article; Peer reviewed, 2021)We consider mechanics of composite materials in which thin inclusions are modeled by lower-dimensional manifolds. By successively applying the dimensional reduction to junctions and intersections within the material, a ... -
Stanley-Reisner ringer med sykliske gruppevirkninger
(Master thesis, 2009-05-29)Oppgaven tar for seg noen spesielle Stanley-Reisner idealer I i polynomringen S med n variable, der mengden av potensvektorene til de minimale generatorene for I er invariant under gruppevirkningen fra gruppen generert av ...