Browsing Matematisk institutt by Title

Now showing items 2008-2027 of 3782

  • Nanobubble-induced flow of immersed glassy polymer films 
    Pedersen, Christian; Ren, Shuai; Wang, Yuliang; Carlson, Andreas; Salez, Thomas (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    We study the free-surface deformation dynamics of an immersed glassy thin polymer film supported on a substrate, induced by an air nanobubble at the free surface. We combine analytical and numerical treatments of the glassy ...
  • Nanotube-Mediated Path to Protocell Formation 
    Köksal, Elif; Liese, Susanne; Kantarci, Ilayda; Olsson, Ragni; Carlson, Andreas; Gözen, Irep (Journal article / Tidsskriftartikkel / SubmittedVersion, 2019)
  • NATURAL CONVECTION IN A MODEL WITH ONE FREE AND ONE RIGID BOUNDARY 
    Oddmund, Kvernvold (Research report / Forskningsrapport, 1978)
  • THE NATURE OF THE SOUND WAVE POLARIZATION FIELD FOR ANISOTROPIC ELASTIC MEDIA WITHOUT ACOUSTIC AXES. THE CRITERION FOR THE PRESENCE OF ACOUSTIC AXES 
    Holm, Per; Lothe, J. (Research report / Forskningsrapport, 1979)
  • Navier Stokes Equation with Rough Transport Noise 
    Hofmanová, Martina; Leahy, James-Michael; Nilssen, Torstein (Research report / Forskningsrapport, 2017)
    We consider a Navier-Stokes equation in two and three space dimensions subject to periodic boundary conditions and perturbed by a transport type noise. The perturbation is sufficiently smooth in space, but rough in time. ...
  • A Navier-Stokes Solver for Single- and Two-Phase Flow 
    Kalland, Kim Motoyoshi (Master thesis / Masteroppgave, 2008)
    This master’s thesis explains how a 2D Navier-Stokes solver can be implemented. The numerical methods used, how the solver works and how it can be used to solve flow problems are documented in detail. The Navier-Stokes ...
  • Near Bottom Currents Induced by Waves of Different Shapes 
    Jensen, Kadek Dwipayana (Master thesis / Masteroppgave, 2022)
  • Near-critical spreading of droplets 
    Saiseau, Raphael; Pedersen, Christian; Benjana, Anwar; Carlson, Andreas; Delabre, Ulysse; Salez, Thomas; Delville, Jean-Pierre (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Abstract We study the spreading of droplets in a near-critical phase-separated liquid mixture, using a combination of experiments, lubrication theory and finite-element numerical simulations. The classical Tanner’s law ...
  • Nef cycles on some hyperkahler fourfolds 
    Ottem, John Christian (Journal article / Tidsskriftartikkel / SubmittedVersion, 2017)
    We study the cones of surfaces on varieties of lines on cubic fourfolds and Hilbert schemes of points on K3 surfaces. From this we obtain new examples of nef cycles which fail to be pseudoeffective.
  • Negative definite functions for C*-dynamical systems 
    Bedos, Erik Christopher; Conti, Roberto (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
    Given an action α of a discrete group G on a unital C∗ -algebra A, we introduce a natural concept of α -negative definiteness for functions from G to A, and examine some of the first consequences of such a notion. ...
  • Neural Networks for Pricing Caps on LIBOR Rates 
    Kristensen, Jon Randby (Master thesis / Masteroppgave, 2021)
  • Neural networks in Fréchet spaces 
    Benth, Fred Espen; Detering, Nils; Galimberti, Luca (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
    We propose a neural network architecture in infinite dimensional spaces for which we can show the universal approximation property. Indeed, we derive approximation results for continuous functions from a Fréchet space X ...
  • Neural Representations in Geometry 
    Berzins, Arturs (Doctoral thesis / Doktoravhandling, 2024)
    The profound impact of machine learning is increasingly evident as new tools are adopted by technical communities and the public. With the current pace of scientific advancement, machine learning is poised to further amplify ...
  • New and extended design moment formulations for slender columns in frames with sway 
    Hellesland, Jostein (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Present first-order based design code formulations for slender columns in frames with sway, employ sway magnification factors (for global second-order effects) also as moment magnifiers for the individual columns of the ...
  • New approach to optimal control of stochastic Volterra integral equations 
    Agram, Nacira; Øksendal, Bernt; Yakhlef, Samia (Journal article / Tidsskriftartikkel / SubmittedVersion, 2019)
    We study optimal control of stochastic Volterra integral equations (SVIE) with jumps by using Hida-Malliavin calculus. We give conditions under which there exist unique solutions of such equations. Then we prove both a ...
  • A New Approach to Strong Solutions of SDE's with non-Lipschitzian coefficients 
    Lanconelli, Alberto; Proske, Frank (Research report / Forskningsrapport, 2004)
    We develop a new method to study the existence of global strong solutions of stochastic differential equations with non-Lipschitzian coefficients driven by a Brownian motion. We derive explicit formulas for strong solutions ...
  • A new Bismut-Elworthy-Li-formula for diffusions with singular coefficients driven by a pure jump Levy process and applications to life insurance 
    Christensen, Tor Martin (Master thesis / Masteroppgave, 2015)
    The main result of my mine in the master thesis is a new Bismut-Elworthy-Li-formula with respect to a pure jump Levy noise driven stochastic differential equation (SDE), with non-Lipschitz continuous coefficients. This ...
  • New bounds for the signless Laplacian spread 
    Andrade, Enide; Dahl, Geir; Leal, Laura; Robbiano, Maria (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
    Let G be an undirected simple graph. The signless Laplacian spread of G is defined as the maximum distance of pairs of its signless Laplacian eigenvalues. This paper establishes some new bounds, both lower and upper, for ...
  • A NEW CONSTRUCTION OF A NON-CONSTRUCTIBLE Δ₃¹ SUBSET OF ω 
    Jensen, Ronald B.; Johnsbråten, Håvard (Research report / Forskningsrapport, 1973)
  • New current modified Schrödinger equations 
    Hjelmervik, Karina B.; Trulsen, Karsten (Research report / Forskningsrapport, 2009)
    New current modified Schrödinger equations are derived suited to study waves on both potential and non-potential inhomogeneous currents. Split-step schemes of first, second, and fourth order are discussed. Different results ...