Blar i Institutt for matematiske fag på emneord "MATHEMATICS"

Viser treff 1-6 av 6

    • A Posteriori Error Estimation for Finite Element Methods and Iterative Linear Solvers 

      Melbø, Hallgeir (Dr. ingeniøravhandling, 0809-103X; 2001:98, Doctoral thesis, 2001)
      This thesis addresses a posteriori error estimation for finite element methods and iterative linear solvers. Adaptive finite element methods have gained a lot of popularity over the last decades due to their ability to ...

    • Depth consistent pp and ps seismic angle tomography 

      Foss, Stig-Kyrre (Doktoravhandlinger ved NTNU, 1503-8181; 2004:18, Doctoral thesis, 2004)
      This thesis addressed the problem of finding background models yielding depth consistent migrated PP and PS images, i.e. geologically equivalent reflectors should be imaged at the same depth in the two images. The tomographic ...

    • Markov chain Monte Carlo updating schemes for hidden Gaussian Markov random field models 

      Steinsland, Ingelin (Dr. ingeniøravhandling, 0809-103X; 2003:89, Doctoral thesis, 2003)
      Part I discusses how to construct approximations to the posterior distribution π(x|y, θ) of a latent Gaussian Markov random field on a graph of dimension n when data are considered conditionally mutually independent and ...

    • Numerical Solution og Coupled CFD Problems by the Domain Decomposition Method 

      Holdahl, Runar (Doktoravhandlinger ved NTNU, 1503-8181; 2004:102, Doctoral thesis, 2004)
      In this thesis we look at the efficient numerical solution of two complex multi-physics problems which both have very important applications. The first problem is related to the numerical simulation of extrusion of aluminium. ...

    • On Eigen-decompositions and Adaptivity of Markov Chains 

      Erland, Sveinung (Dr. ingeniøravhandling, 0809-103X; 2003:102, Doctoral thesis, 2003)
      Part I and Part III-V concern Markov chain Monte Carlo and in particular those algorithms related to the Metropolis-Hastings algorithm. In Part I-II we apply an eigendecomposition of the transition probability matrix. The ...

    • On the theory and numerical analysis of viscosity solutions 

      Jakobsen, Espen Robstad (Dr. ingeniøravhandling, 0809-103X; 2001:95, Doctoral thesis, 2001)