Institutt for matematiske fag: Recent submissions
Now showing items 81-100 of 2364
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Lax monoidal adjunctions, two-variable fibrations and the calculus of mates
(Peer reviewed; Journal article, 2023) -
The Douglas formula in Lp
(Peer reviewed; Journal article, 2023) -
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 ... -
Generic constructions of master-key KDM secure attribute-based encryption
(Peer reviewed; Journal article, 2023)Master-key key-dependent message (mKDM) security is a strong security notion for attribute-based encryption (ABE) schemes, which has been investigated in recent years. This line of research was started with identity-based ... -
Categorical matrix factorizations
(Peer reviewed; Journal article, 2023) -
Free algebras through Day convolution
(Peer reviewed; Journal article, 2022) -
Language elements helping to see enlargement as a multiplicative situation
(Chapter, 2020)This paper presents an analysis of Grade 5 pupils' work with similarity, based on an adaptation of Brousseau's classical puzzle. My main interest is in investigating the pupils' language repertoire and mathematical strategies ... -
On distributivity in higher algebra I: The universal property of bispans
(Peer reviewed; Journal article, 2023)Structures where we have both a contravariant (pullback) and a covariant (pushforward) functoriality that satisfy base change can be encoded by functors out of (∞-)categories of spans (or correspondences). In this paper, ... -
Digital Twins in Wind Energy: Emerging Technologies and Industry-Informed Future Directions
(Peer reviewed; Journal article, 2023) -
Short Identity-Based Signatures with Tight Security from Lattices
(Peer reviewed; Journal article, 2021)We construct a short and adaptively secure identity-based signature scheme tightly based on the well-known Short Integer Solution (SIS) assumption. Although identity-based signature schemes can be tightly constructed from ... -
Fine-Grained Secure Attribute-Based Encryption
(Peer reviewed; Journal article, 2021) -
Mean field limit for one dimensional opinion dynamics with Coulomb interaction and time dependent weights
(Journal article; Peer reviewed, 2024)The mean field limit with time dependent weights for a 1D singular case, given by the attractive Coulomb interactions, is considered. This extends recent results (Ayi and Duteil, 2021; Duteil, 2022) for the case of regular ... -
Equivariant Z/ℓ-modules for the cyclic group C2
(Peer reviewed; Journal article, 2023)For the cyclic group we give a complete description of the derived category of perfect complexes of modules over the constant Mackey ring , for ℓ a prime. This is fairly simple for ℓ odd, but for depends on a new splitting ... -
Spatially varying anisotropy for Gaussian random fields in three-dimensional space
(Journal article; Peer reviewed, 2023)Isotropic covariance structures can be unreasonable for phenomena in three-dimensional spaces. In the ocean, the variability of a response may vary with depth, and ocean currents may lead to spatially varying anisotropy. ... -
A note on Bohr’s theorem for Beurling integer systems
(Journal article; Peer reviewed, 2023)Given a sequence of frequencies , a corresponding generalized Dirichlet series is of the form . We are interested in multiplicatively generated systems, where each number arises as a finite product of some given ... -
Using machine learning to assess the extent of busy ambulances and its impact on ambulance response times: A retrospective observational study
(Peer reviewed; Journal article, 2024)Background Ambulance response times are considered important. Busy ambulances are common, but little is known about their effect on response times. Objective To assess the extent of busy ambulances in Central Norway ... -
Cyclicity in the Drury-Arveson space and other weighted Besov spaces
(Peer reviewed; Journal article, 2023) -
n-cluster tilting subcategories for radical square zero algebras
(Peer reviewed; Journal article, 2023) -
Persistence Initialization: a novel adaptation of the Transformer architecture for time series forecasting
(Peer reviewed; Journal article, 2023)Time series forecasting is an important problem, with many real world applications. Transformer models have been successfully applied to natural language processing tasks, but have received relatively little attention for ...