Essays about: "cubic string"

Found 2 essays containing the words cubic string.

  1. 1. Cubic Representations of Open-String Effective Action Contact Terms and BCJ Relations at Four-Point One-Loop

    University essay from Uppsala universitet/Teoretisk fysik

    Author : Tegevi Micah; [2021]
    Keywords : Scattering Amplitudes; Color-Kinematics;

    Abstract : The tree amplitudes of string theory low-energy effective actions admit a diagrammatic expansion in terms of higher-than-cubic contact terms. These tree amplitudes can be used to build loop amplitudes using unitary cuts or the forward limit. READ MORE

  3. 2. Total positivity and oscillatory kernels : An overview, and applications to the spectral theory of the cubic string

    University essay from Tillämpad matematik

    Author : Marcus Kardell; [2010]
    Keywords : cubic string; total positivity; oscillatory kernels; planar networks;

    Abstract : In the study of the Degasperis-Procesi dierential equation, an eigenvalue problem called the cubic string occurs. This is a third order generalization of the second order problem describing the eigenmodes of a vibrating string. READ MORE