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Choice of representations in combinatorial problems
(Chapter, 2022)This paper is based on classroom sessions where Norwegian 9-year-old (Grade 4) children work on combinatorial problems. The classroom sessions are part of a four-year long research project where the topic of multiplicative ... -
Chopsticks: Fork-Free Two-Round Multi-signatures from Non-interactive Assumptions
(Peer reviewed; Journal article, 2023)Multi-signatures have been drawing lots of attention in recent years, due to their applications in cryptocurrencies. Most early constructions require three-round signing, and recent constructions have managed to reduce the ... -
Circulating microRNAs as predictive biomarkers of myocardial infarction: Evidence from the HUNT study.
(Peer reviewed; Journal article, 2019)Background and aims Several risk prediction models for coronary heart disease (CHD) are available today, however, they only explain a modest proportion of the incidence. Circulating microRNAs (miRs) have recently been ... -
Classical well-posedness in dispersive equations with nonlinearities of mild regularity, and a composition theorem in Besov spaces
(Journal article; Peer reviewed, 2018)For both localized and periodic initial data, we prove local existence in classical energy space Hs,s > 3 2 , for a class of dispersive equations ut +(n(u))x +Lux = 0 with nonlinearities of mild regularity. Our results are ... -
Classification of seismic waveform attributes in a Bayesian framework
(Master thesis, 2009)The work conducted in this thesis is an extension of an existing methodology developed at Schlumberger Stavanger Research. The Extrema Classification method (Borgos, 2003) provides a framework for automated mapping of ... -
Classification problems for special biserial and gentle algebras
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:226, Doctoral thesis, 2014) -
Classifying Subcategories in Quotients of Exact Categories - Classifying Triangulated and Thick Triangulated Subcategories of an Algebraic Triangulated Category
(Master thesis, 2017)The goal of this thesis is to prove a one-to-one correspondence between (thick) triangulated subcategories of the stable category associated with a Frobenius category and certain subcategories of the Frobenius category. ... -
Classifying Subcategories of Triangulated Categories
(Master thesis, 2018)The topic of this thesis is classification of subcategories of triangulated categories. We first state and prove the Hopkins-Neeman theorem, which gives a bijection between thick subcategories of the derived category of ... -
Classifying Tensor Triangulated Subcategories
(Master thesis, 2018)We define triangulated and tensor triangulated categories, and classify the thick subcategories of a specific tensor triangulated category using Paul Balmer s theory on the categorical spectrum. -
Climatology Cumulative Probability Regression: A Postprocessing Methodology Based on Climatology and Deterministic Forecasts, With a Case Study of Streamflow Forecasts at Osali
(Master thesis, 2014)This study introduce a new postprocessing methodology for constructing probabilistic forecasts based on climatology and deterministic forecasts. The Climatology Cumulative Probability Regression (CCPR) methodology is based ... -
Closed-skew Distributions: Simulation, Inversion and Parameter Estimation
(Master thesis, 2010)Bayesian closed-skew Gaussian inversion is defined as a generalization of traditional Bayesian Gaussian inversion. Bayesian inversion is often used in seismic inversion, and the closed-skew model is able to capture the ... -
Closure Law Model Uncertainty Quantification
(Peer reviewed; Journal article, 2021)The prediction uncertainty in simulators for industrial processes is due to uncertainties in the input variables and uncertainties in specification of the models, in particular the closure laws. In this work, the uncertainty ... -
Cloud-assisted Asynchronous Key Transport with Post-Quantum Security
(Peer reviewed; Journal article, 2020)In cloud-based outsourced storage systems, many users wish to securely store their files for later retrieval, and additionally to share them with other users. These retrieving users may not be online at the point of the ... -
Cluster categories and cluster-tilted algebras
(Master thesis, 2006)We have given an introduction to the theory of cluster categories and cluster-tilted algebras, and this was one of our main objectives in this thesis. We have seen that cluster-tilted algebras are relation-extension algebras, ... -
Cluster equivalence and graded derived equivalence
(Peer reviewed; Journal article, 2014)In this paper we introduce a new approach for organizing algebras of global dimension at most 2. We introduce the notion of cluster equivalence for these algebras, based on whether their generalized cluster categories are ... -
CO2 Sequestration - a Near-Well Study
(Master thesis, 2017)Carbon Capture and Storage (CCS) has been proposed as a promising and necessary tool in strategies for mitigating the effects of anthropogenic climate change. Deep geological formations, like saline aquifers, are pointed ... -
Coaction functors
(Journal article; Peer reviewed, 2016)A certain type of functor on a category of coactions of a locally compact group on C ∗ C∗-algebras is introduced and studied. These functors are intended to help in the study of the crossed-product functors that have ... -
Coaction functors, II
(Journal article; Peer reviewed, 2018)In their study of the application of crossed-product functors to the Baum–Connes conjecture, Buss, Echterhoff, and Willett introduced various properties that crossed-product functors may have. Here we introduce and study ... -
Codes in Algebras
(Master thesis, 2023)Vi viser, ved hjelp av teorien om automorfier til utvidede kvadratiske restkoder, at den utvidede binære Golay-koden er et ideal i gruppealgebraen til den symmetriske gruppen på $4$ elementer over $\mathbb{Z}_2$. Vi utnytter ...