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On Perturbation Resilience of Non-uniform k-Center
(Journal article; Peer reviewed, 2021)The Non-Uniform k-center (NUkC) problem has recently been formulated by Chakrabarty et al. [ICALP, 2016; ACM Trans Algorithms 16(4):46:1–46:19, 2020] as a generalization of the classical k-center clustering problem. In ... -
On properties of translation groups in the affine general linear group with applications to cryptography
(Journal article; Peer reviewed, 2021)The affine general linear group acting on a vector space over a prime field is a well-understood mathematical object. Its elementary abelian regular subgroups have recently drawn attention in applied mathematics thanks to ... -
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 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 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 (un)doing of anthropology and secularity, and its relevance for religious studies
(Journal article; Peer reviewed, 2021)This essay is a response to the inquiries and discussions of ‘anthropology’s secular conditioning’ that Khaled Furani, Joel Robbins, Jonathan Boyarin, Matthew Engelke, Richard Handler, Elayne Oliphant, and Eduardo Dullo ... -
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 Anatomy of Health-related Actions for Which People Could Reasonably be Held Responsible: A Framework
(Journal article; Peer reviewed, 2023)Should we let personal responsibility for health-related behavior influence the allocation of healthcare resources? In this paper, we clarify what it means to be responsible for an action. We rely on a crucial conceptual ... -
On the behavior of some APN permutations under swapping points
(Journal article; Peer reviewed, 2022)We define the pAPN-spectrum (which is a measure of how close a function is to being APN) of an (n, n)-function F and investigate how its size changes when two of the outputs of a given function F are swapped. We completely ... -
On the Boomerang Uniformity of some Permutation Polynomials
(Journal article; Peer reviewed, 2020)The boomerang attack, introduced by Wagner in 1999, is a cryptanalysis technique against block ciphers based on differential cryptanalysis. In particular it takes into consideration two differentials, one for the upper ... -
On the Brauer group of bielliptic surfaces (with an appendix by Jonas Bergström and Sofia Tirabassi)
(Journal article; Peer reviewed, 2022)We provide explicit generators of the torsion of the second cohomology of bielliptic surfaces, and we use this to study the pullback map between the Brauer group of a bielliptic surface and that of its canonical cover. -
On the Complexity of Intersection Non-emptiness for Star-Free Language Classes
(Journal article; Peer reviewed, 2021)In the Intersection Non-emptiness problem, we are given a list of finite automata A_1, A_2,… , A_m over a common alphabet Σ as input, and the goal is to determine whether some string w ∈ Σ^* lies in the intersection of the ... -
On the Complexity of Recovering Incidence Matrices
(Journal article; Peer reviewed, 2020)The incidence matrix of a graph is a fundamental object naturally appearing in many applications, involving graphs such as social networks, communication networks, or transportation networks. Often, the data collected about ... -
On the Creation, Depletion, and End of Life of Polar Cap Patches
(Journal article; Peer reviewed, 2023)Ionospheric convection patterns from the Super Dual Auroral Radar Network are used to determine the trajectories, transit times, and decay rates of three polar cap patches from their creation in the dayside polar cap ... -
On the Distance Between APN Functions
(Journal article; Peer reviewed, 2020)We investigate the differential properties of a vectorial Boolean function G obtained by modifying an APN function F . This generalizes previous constructions where a function is modified at a few points. We characterize ... -
On the EA-classes of known APN functions in small dimensions
(Journal article; Peer reviewed, 2020)Recently Budaghyan et al. (Cryptogr. Commun. 12, 85–100, 2020) introduced a procedure for investigating if CCZ-equivalence can be more general than EA-equivalence together with inverse transformation (when applicable). In ... -
On the effect of climate trends in coastal density on deep water renewal frequency in sill fjords—A statistical approach
(Journal article; Peer reviewed, 2020)The basin water of a sill fjord is renewed intermittently, when the density of the water at sill level in the ocean outside the fjord is high enough for it to sink down to the bottom of the fjord. How often the basin water ... -
On the Effect of DCE MRI Slice Thickness and Noise on Estimated Pharmacokinetic Biomarkers – A Simulation Study
(Journal article; Peer reviewed, 2020)Simulation of a dynamic contrast-enhanced magnetic resonance imaging (DCE MRI) multiple sclerosis brain dataset is described. The simulated images in the implemented version have 1×1×1mm3 voxel resolution and arbitrary ... -
On the effect of nocturnal radiation fog on the development of the daytime convective boundary layer: A large-eddy simulation study
(Journal article; Peer reviewed, 2022)The potential effect of failing to predict nocturnal deep radiation fog on the development of the daytime convective boundary layer (CBL) is studied using large-eddy simulations. Typical spring and autumn conditions for ...