Essays about: "Adjoint"

Showing result 1 - 5 of 44 essays containing the word Adjoint.

  1. 1. The Pseudo-Unitary Group U(p,q) in Quantum Magnonics

    University essay from Uppsala universitet/Materialteori

    Author : Maximilian Meyer-Mölleringhof; [2024]
    Keywords : quantum magnonics; materials theory; pseudo-unitary; quantum mechanics; magnons; antiferromagnets;

    Abstract : The study of magnons is an essential part of combining quantum information science and spintronics, allowing for the investigation of quantum properties such as entanglement in solid-state devices. Magnons are commonly described using the theory of T. Holstein and H. READ MORE

  3. 2. Adjoint-based Formulation for Shape Optimization Problems in Computational Fluid Dynamics

    University essay from KTH/Matematik (Avd.)

    Author : Anton Scotte; [2023]
    Keywords : ;

    Abstract : A continuous adjoint formulation for exterior optimization of Dirichlet data on the boundary for potential flow applications has been developed in this thesis. This has been performed by utilizing boundary integral methods for both the primal problem (Laplace’s equation) and for the corresponding adjoint equation (Poisson’s equation) on the unit disc. READ MORE

  4. 3. Adjoint Curves of Polycons

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Hilding Boij; [2023]
    Keywords : ;

    Abstract : In this thesis we are going to discuss polycons and their adjoint curves. We willdefine polycons as a type of polygon that allows for boundary curves of degree 2. READ MORE

  5. 4. An operator theoretic approach to the Riemann Hypothesis

    University essay from Lunds universitet/Matematik (naturvetenskapliga fakulteten); Lunds universitet/Matematikcentrum

    Author : Ramon Arjan van de Scheur; [2023]
    Keywords : Riemann hypothesis; Prime number theorem; Prime number theorem for arithmetic progressions; operator theoretic equivalent; compact operator; prime-counting function; Chebyshev function; Laplace transform; Fourier transform; convolution operator; weak topology; strong topology; compact perturbation; Tauberian theorem; Poisson kernel; holomorphic; self-adjoint; spectrum; trace; Mathematics and Statistics;

    Abstract : In 2023 an operator theoretic approach to the Prime Number Theorem was introduced by Olsen. In this thesis this approach is examined and applied to give a new, operator theoretic, proof of a different version of the Prime Number Theorem and of the Prime Number Theorem for arithmetic progressions. READ MORE

  6. 5. Metric Methods in Ergodic Theory

    University essay from Uppsala universitet/Dynamiska system och talteori

    Author : Erik Avelin; [2023]
    Keywords : Ergodic theory; Metric functionals;

    Abstract : This bachelor's thesis discusses from an ergodic-theoretical perspective the "metric functional analysis" that Anders Karlsson and others have developed in the recent years. We introduce a new symbolic calculus for metric functionals which includes a notion of the adjoint of a nonexpansive map. READ MORE