Essays about: "Resolution of singularities"

Found 4 essays containing the words Resolution of singularities.

  1. 1. Electrodynamic field at spatial infinity

    University essay from KTH/Fysik

    Author : Jakob Myhrman; [2022]
    Keywords : Spatial infinity; Conformal rescaling; Minkowski space; Penrose Diagram; Einstein universe; Newman-Penrose formalism; Sigma-process; Resolution of singularities; Maxwell s equations; Cylinder at spatial infinity; Rumslig oändlighet; Konform omskalning; Minkowski rummet; Penrose Diagram; Einsteins universum; Newman-Penrose formalismen; Sigma-processen; Singularitetupplösning; Maxwells ekvationer; Cylindern vid rumslig oändlighet;

    Abstract : The treatment of spatial infinity is one of the remaining major open problems in the theory of isolated self-gravitating systems. Especially when one wants to model scattering of gravitational radiation in spacetime. In this thesis the conformal theory is used to study simple electromagnetic fields, close to spatial infinity. READ MORE

  3. 2. Mass-Singularity Structure of QED and Perturbative Quantum Gravity Scatterings

    University essay from Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Author : Santiago Londono Castillo; [2020]
    Keywords : perturbative quantum gravity; QED; mass singularities; collinear singularities; soft singularities; singularity cancellation; graviton; Physics and Astronomy;

    Abstract : In this thesis, the mass singularities occurring in the cross-section of electron scattering processes are investigated. Two types of scatterings are studied: Quantum Electrodynamics (QED) scatterings, and Perturbative Quantum Gravity (PQG) scatterings. READ MORE

  4. 3. 3D Finite Element Modelling of ICRH in JET

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Björn Ljungberg; [2019]
    Keywords : ;

    Abstract : This master's thesis assesses the possibility of using the nite element method to solve the electromagneticwave equation in a fusion plasma in 3D. In particular, the frequency is chosen to match that of ioncyclotron resonance heating in the fusion experiment JET. READ MORE

  5. 4. Nonlinear Interpolation from Video Images to High Quality Printers

    University essay from Lunds universitet/Institutionen för reglerteknik

    Author : Anders Hansson; [1989]
    Keywords : Image interpolation; Edge-detection; Potential theory; Ink jet plotter; Technology and Engineering;

    Abstract : Recent high quality printers pose interesting questions on how to reproduce images taken by a video camera. A modern ink jet plotter has typically a resolution four times better than a good video camera. Pixel replication and bilinear interpolation give reasonable results, but have a tendency to blur the image. READ MORE