• Explicit, A Priori Constrained Model Parameterization for Inverse Problems, Applied on Geophysical CSEM Data 

      Skrede, Ole-Johan (Master thesis, 2014)
      This thesis introduce a new parameterization of the model space in global inversion problems. The parameterization provides an explicit representation of the model space with a basis constrained on a priori information ...
    • Exploring Dietary Intake in Adults with Severe Obesity and Associations with the FTO rs9939609 Genotypes 

      De Soysa, Ann Kristin Hjelle; Alho Letra Martins, Catia Patricia; Langaas, Mette; Grill, Valdemar Erik Robert; Mostad, Ingrid Løvold (Peer reviewed; Journal article, 2023)
      Background Few have studied the associations between rs9939609 genotypes in the obesity candidate locus FTO and energy and nutrient intakes and meal frequencies in adults with severe obesity. We are unaware of studies ...
    • Exploring Instruction Cache Analysis - On Arm 

      Svedenborg, Stian Valentin (Master thesis, 2014)
      This thesis explores the challenges of implementing an instruction cache side-channel attack on an ARM platform. The information leakage through the instruction cache is formally discussed using information theoretic ...
    • Exponential decay of solitary waves to Degasperis-Procesi equation 

      Pei, Long (Peer reviewed; Journal article, 2020)
      We improve the decay argument by Bona and Li (1997) [5] for solitary waves of general dispersive equations and illustrate it in the proof for the exponential decay of solitary waves to steady Degasperis-Procesi equation ...
    • Exponential Weighted Sums related to the Divisor and Circle Problems 

      Mcnulty, Henry David Feaver (Master thesis, 2018)
      The classical results of the Dirichlet Divisor Problem and Gauss' Circle Problem are examined, with required information on the Riemann Zeta function presented. In particular, the results derived from the weighted sums of ...
    • Exposing boundary points of strongly pseudoconvex subvarieties in complex spaces 

      Deng, Fusheng; Fornæss, John Erik; Wold, Erlend Fornæss (Journal article; Peer reviewed, 2018)
      We prove that all locally exposable points in a Stein compact in a complex space can be exposed along a given curve to a given real hypersurface. Moreover, the exposing map for a boundary point can be sufficiently close ...
    • Extending quantitative genetic models to estimate mutational variance 

      Rekkebo, Vebjørn (Master thesis, 2021)
      Dette prosjektet introduserer utvidelser av dyremodellen, en type generalisert lineær blandet modell innen kvantitativ genetikk. Modellen utnytter informasjonen i en kjent slektskapsstruktur for dyre- eller plantepopulasjoner ...
    • An extension of Bohr's theorem 

      Brevig, Ole Fredrik; Kouroupis, Athanasios (Peer reviewed; Journal article, 2024)
    • Extreme loads analysis of a site-specific semi-submersible type wind turbine 

      Xu, Xiaosen; Gaidai, Oleg; Næss, Arvid; Sahoo, Prasanta (Peer reviewed; Journal article, 2020)
      As a vital key part of the modern offshore wind energy industry, floating offshore wind turbines (FOWT) are built to generate green renewable energy. Robust prediction of extreme loads during FOWT operation is an important ...
    • Extreme riser experimental loads caused by sea currents in the Gulf of Eilat 

      Sun, Jiayao; Gaidai, Oleg; Wang, Fang; Næss, Arvid; Wu, Yu; Xing, Yihan; van Loon, Eric-Jan; Medina, Ausberto Rivera; Wang, Junlei (Peer reviewed; Journal article, 2022)
      Risers are widely used in offshore industry and are subjected to dynamic environmental loads. Robust prediction of extreme riser external loading under the action of sea currents and subsequently VIV (vortex-induced ...
    • Extreme Value Analysis & Application of the ACER Method on Electricity Prices 

      Anda, Torgeir (Master thesis, 2012)
      In this thesis we have explored the very high prices that sometimes occurs in the Nord Pool electricity market Elspot. By applying AR-GARCH time series models, extreme value theory, and ACER estimation techniques, we have ...
    • Extreme value prediction with modified Enhanced Monte Carlo method based on tail index correction 

      Yu, Siyuan; Wu, Wenhua; Næss, Arvid (Peer reviewed; Journal article, 2023)
      As one of the main branches of extreme statistics, extreme value theory is widely used in marine engineering. Due to its special application in real ocean environmental states, the scale of the obtained monitoring data is ...
    • Extreme values for Sn(σ,t) near the critical line 

      Chirre, Andrés (Journal article; Peer reviewed, 2019)
      Let S(σ, t) =1πargζ(σ+it)be the argument of the Riemann zeta function at the point σ+itof the critical strip. Fo r n ≥1and t >0we defineSn(σ, t)=t∫0Sn−1(σ, τ)dτ+δn,σ,where δn,σis a specific constant depending on σand n. ...
    • Extreme values of the argument of the Riemann zeta function 

      Hagen, Markus Valås (Master thesis, 2023)
      Vi beviser et eksplisitt Ω-resultat for argumentet til Riemann’s zeta funksjon. Deretter finner vi store verdier av argumentet til Dedekind zeta funksjonen til en syklotomisk kropp. Dette resulterer i forbedrete Ω-resultat ...
    • Extreme values of the Riemann zeta function and its argument 

      Bondarenko, Andrii; Seip, Kristian (Journal article; Peer reviewed, 2018)
      We combine our version of the resonance method with certain convolution formulas for ζ(s) and logζ(s) . This leads to a new Ω result for |ζ(1/2+it)| : The maximum of |ζ(1/2+it)| on the interval 1≤t≤T is at ...
    • F. Wiener’s Trick and an Extremal Problem for H<sup>p</sup> 

      Brevig, Ole Fredrik; Grepstad, Sigrid; Instanes, Sarah May (Peer reviewed; Journal article, 2022)
      For 0<p≤∞, let Hp denote the classical Hardy space of the unit disc. We consider the extremal problem of maximizing the modulus of the kth Taylor coefficient of a function f∈Hp which satisfies ∥f∥Hp≤1 and f(0)=t for some ...
    • The Faá di Bruno Hopf algebra for multivariable feedback recursions in the center problem for higher order Abel equations 

      Ebrahimi-Fard, Kurusch; Gray, W. Steven (Peer reviewed; Journal article, 2019)
      Poincaré’s center problem asks for conditions under which a planar polynomial system of ordinary differential equations has a center. It is well understood that the Abel equation naturally describes the problem in a ...
    • Fabrication of a scaled MgB2 racetrack demonstrator pole for a 10 MW direct drive wind turbine generator 

      Magnusson, Niklas; Eliassen, J. C.; Abrahamsen, Asger B; Hellesø, Svein Magne; Runde, Magne; Nysveen, Arne; Moslått, Lars-Erik; Bjerkli, Jarle; King, Patrick (Journal article; Peer reviewed, 2018)
      Field windings made of MgB2 wires or tapes are considered for their potential to reduce volume, weight and cost of large offshore wind turbine generators. To gain experience of how to use this relatively new material in ...
    • Factor screening in a 12 Run Plackett-Burman design assuming four active factors 

      Jin, Yingzi (Master thesis, 2016)
      In this thesis we perform factor screening in a non-regular two-level design by reducing the number of possible sets of active factors to a certain number. The 12 Run Plackett-Burman(PB) design with four active factors is ...
    • Faktorisering av idealar i Dedekindområder 

      Moldskred, Isabell (Bachelor thesis, 2023)
      I denne bacheloroppgåva studerer ein korleis ideal blir faktorisert til eit unikt produkt av primideal i eit Dedekindområde. Det er interessant at ideal har denne eigenskapen, sidan det ikkje nødvendigvis er slik at eit ...