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Bergen Open Research Archive

Browsing Department of Mathematics by Title

Bergen Open Research Archive

Browsing Department of Mathematics by Title

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  • Bergo, Brede Rem (Master thesis, The University of Bergen, 2011-06-15)
    In many physical applications we want to characterize the parameters of a system based on indirect observations or measurements. In a reservoir simulator setting, the goal is to simulate the production of hydrocarbons ...
  • Nicolajsen, Tomas (Master thesis, The University of Bergen, 2014-06-01)
    Hensikten med oppgaven er å undersøke en adaptiv kollokasjonsmetode basert på radielle basisfunksjoner. Målet er å finne ut om man med enkle kriterier for senter- og formparameterfordelingen kan oppnå en fordeling ...
  • Sævik, Pål Næverlid (Master thesis, The University of Bergen, 2011-08-01)
    In this thesis, we show how the common equations for flow in porous media can be expanded to account for geochemical reactions. Furthermore, the complications arising when solving the new equations numerically are described ...
  • Wan, Min; Wang, Yu; Bae, Egil; Tai, Xue-Cheng; Wang, Desheng (Preprint, The authors, 2011)
    A novel graph-cuts-basedmethod is proposed for reconstructing open surfaces from unordered point sets. Through a boolean operation on the crust around the data set, the open surface problem is translated to a watertight ...
  • Schei, Ole Johan Sørensen (Master thesis, The University of Bergen, 2009-09-15)
  • Johansson, Kari (Master thesis, The University of Bergen, 2014-06-06)
    Problemstillinga i oppgåva var korleis opplever elevane bruk av rekneark i matematikk på ungdomstrinnet. Gjennom eitt år vart ulike reknearkoppgåver prøvd ut i 9./10. klasse. I etterkant henta eg inn data ved hjelp av ...
  • Rabenorolahy, Lalaniaina David (Master thesis, The University of Bergen, 2008)
  • Schwinger, Eyram A. Kojo (Master thesis, The University of Bergen, 2009-06-02)
    This study is aimed at testing the use of Magnetic Resonance (MR) images and mathematical models for renal parameter estimation. The study was based on four models; the Patlak model, Cortical Compartment model, Separable ...
  • Lyyjynen, Hannu Sakari (Master thesis, The University of Bergen, 2014-03-10)
    The history of MCMC, theories of Bayesian thinking and model choice, the Accept- Reject-algorithm, Markov chains, the Metropolis- Hastings-algorithm and the reversible jump MCMC are explained. Then the reversible ...
  • Celia, Michael A.; Nordbotten, Jan Martin; Bachu, Stefan; Dobossy, Mark E.; Court, Benjamin (Journal article, Elsevier, 2009-02)
    One of the outstanding challenges for large-scale CCS operations is to develop reliable quantitative risk assessments with a focus on leakage of both injected CO2 and displaced brine. A critical leakage pathway is associated ...
  • Keilegavlen, Eirik (Doctoral thesis, The University of Bergen, 2010-02-19)
  • Ones, Sindre (Master thesis, The University of Bergen, 2011-06-01)
    I denne oppgaven har jeg sett på hvordan uteliggere kan påvirke IBNR reserven i skadereservering. Jeg har studert influens funksjoner for den klassiske Chain-Ladder metoden, og videre sett at uteliggere kan påvirke ...
  • Sandvin, Andreas (Doctoral thesis, The University of Bergen, 2012-04-30)
  • Hunting, Martin (Doctoral thesis, The University of Bergen, 2012-11-06)
    In most countries the authorities impose capital requirements on insurance companies in order to avoid the adverse consequences to society when insurance companies default on claims. Since holding capital is costly, ...
  • Heiseldal, Bård (Master thesis, The University of Bergen, 2008)
    Denne masteroppgaven handler hovedsakelig om å studere sammenhenger mellom ulike em- ner innen algebra og kombinatorikk. De matematiske konseptene som studeres, er lineære koder, matroider, grafer og simplisielle komplekser, ...
  • Kovalenko, Andrey; Mannseth, Trond; Nævdal, Geir (Peer reviewed; Journal article, Springer, 2011-07-06)
    In recent years, data assimilation techniques have been applied to an increasingly wider specter of problems. Monte Carlo variants of the Kalman filter, in particular, the ensemble Kalman filter (EnKF), have gained ...
  • Knudsen, Ørjan (Master thesis, The University of Bergen, 2009-07-17)
  • Johnsen, Trygve; Rasmussen, Nils Henry (Journal article; Peer reviewed, Springer, 2010)
    We construct linear codes from scrolls over curves of high genus and study the higher support weights di of these codes. We embed the scroll into projective space Pk-1 and calculate bounds for the di by considering the ...
  • Jordanger, Lars Arne (Master thesis, The University of Bergen, 2013-06-03)
    This thesis will consider the performance of the cross-validation copula information criterion, xv-CIC, in the realm of finite samples. The theory leading to the xv-CIC will be outlined, and an analysis will be conducted ...
  • Stordal, Andreas Størksen (Doctoral thesis, The University of Bergen, 2011-10-21)
    Since its introduction in 1994, the ensemble Kalman filter (EnKF) has gained a lot of attention as a tool for sequential data assimilation in many scientific areas. Due to its computationally fast and easy to implement ...

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