Blar i Faculty of Mathematics and Natural Sciences på tittel
Viser treff 6363-6382 av 9860
-
On radar imaging of current features: 2. Mesoscale eddy and current front detection
(Peer reviewed; Journal article, 2005-07-22)The surface signatures of meandering fronts and eddies have been regularly observed and documented in synthetic aperture radar (SAR) images. Wave-current interactions, the suppression of short wind waves by natural film, ... -
On regular Frobenius bases
(Department of Pure Mathematics report no. 49, Research report, 1987-03) -
On relations between CCZ- and EA-equivalences
(Peer reviewed; Journal article, 2020)In the present paper we introduce some sufficient conditions and a procedure for checking whether, for a given function, CCZ-equivalence is more general than EA-equivalence together with taking inverses of permutations. ... -
On Self-Dual Quantum Codes, Graphs, and Boolean Functions
(Master thesis, 2005)A short introduction to quantum error correction is given, and it is shown that zero-dimensional quantum codes can be represented as self-dual additive codes over GF(4) and also as graphs. We show that graphs representing ... -
On self-equivalences of APN functions
(Master thesis, 2023-10-16)In this thesis we investigate the structure of what we call extended linear self-equivalences for vectorial Boolean functions. That is, $(L_1, L_2, L)$ such that $L_1 \circ F \circ L_2 + L = F$ for some vectorial Boolean ... -
On Semi-implicit Splitting Schemes for the Beltrami Color Image Filtering
(Peer reviewed; Journal article, 2011)The Beltrami flow is an efficient nonlinear filter, that was shown to be effective for color image processing. The corresponding anisotropic diffusion operator strongly couples the spectral components. Usually, this flow ... -
On Semi-implicit Splitting Schemes for the Beltrami Color Image Filtering
(Peer reviewed; Journal article, 2011-01-15)The Beltrami flow is an efficient nonlinear filter, that was shown to be effective for color image processing. The corresponding anisotropic diffusion operator strongly couples the spectral components. Usually, this flow ... -
On shared use of renewable stocks
(Journal article; Peer reviewed, 2020)Considered here is multi-party exploitation of common property, renewable resources. The parties play various dynamic games differing in degree of cooperation and commitment. Comparisons of steady states clarify issues on ... -
On Shellsort and the Frobenius problem
(Department of Pure Mathematics report no. 48, Research report, 1987-02) -
On Solving a Three Phase Flow Model with Capillary Forces
(Master thesis, 1998-07-10) -
On spiral eddies in the ocean
(Doctoral thesis, 2000) -
On stability in ideal compressible hydrodynamics
(Department of Applied Mathematics report, Research report, 1975-05) -
On Stable Marriages and Greedy Matchings
(Chapter; Peer reviewed, 2016)Research on stable marriage problems has a long and mathematically rigorous history, while that of exploiting greedy matchings in combinatorial scientific computing is a younger and less developed research field. We consider ... -
On Stochastic Reduced-Order and LES-based Models of Offshore Wind Turbine Wakes
(Journal article; Peer reviewed, 2020)In this paper, the primary objective is to investigate flow structures in the wake of wind turbines based on applying a truncated Proper Orthogonal Decomposition (POD) approach. This scheme decomposes the three-dimensional ... -
On strongly degenerate convection-diffusion Problems modeling Sedimentation-Consolidation Processes
(Department of Applied Mathematics report, Research report, 1999-08) -
On Supergraphs Satisfying CMSO Properties
(Journal article; Peer reviewed, 2021)Let CMSO denote the counting monadic second order logic of graphs. We give a constructive proof that for some computable function f, there is an algorithm A that takes as input a CMSO sentence φ, a positive integer t, and ... -
On the accuracy and spatial sampling of finite-difference modelling in discontinuous models
(Journal article; Peer reviewed, 2022)Finite-difference modelling estimates the wavefield in the subsurface by solving the elastic or acoustic wave equation numerically in a discrete version of the subsurface. The derivatives in the wave equation are approximated ... -
On the accuracy of an interdigital electrostatic position sensor
(Journal article; Peer reviewed, 2020)In this work the induced voltage in an interdigital electrode when swept by a finite, triboelectrically charged dielectric surface is investigated. Finite element modelling fits well with the measured voltage as a function ... -
On the applicability of a renormalized Born series for seismic wave modelling in strongly scattering media
(Peer reviewed; Journal article, 2020)Scattering theory is the basis for various seismic modeling and inversion methods. Conventionally, the Born series suffers from an assumption of a weak scattering and may face a convergence problem. We present an application ... -
On the Asymptotics of Solving the LWE Problem Using Coded-BKW With Sieving.
(Peer reviewed; Journal article, 2019)