Essays about: "Spectral theory"

Showing result 21 - 25 of 78 essays containing the words Spectral theory.

  1. 21. Investigation into the pedagogical value of demonstrating deliberate design deficiencies in PCB design instruction

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

    Author : Björn Sunedal; [2021]
    Keywords : PCB design; Interactive Lecture Demonstration; PODS; pedagogy; PCB-konstruktion; Interaktiv föreläsningsdemonstration; PODS; pedagogik;

    Abstract : Universities and other higher education institutions have been struggling with high levels of student dropouts and poor graduation rates for a long time. As a result, there has been an interest in modifying traditional teaching techniques and implementing new ones to improve student learning outcomes. READ MORE

  3. 22. Three Perspectives of Schiemann’s Theorem

    University essay from Göteborgs universitet/Institutionen för matematiska vetenskaper

    Author : Felix Rydell; [2020-06-23]
    Keywords : Lattice theory; Minkowski reduction; flat torus; isospectrality; spectral determination; positive definite quadratic forms; Alexander Schiemann.;

    Abstract : Interest in the field of spectral geometry, the study of how analytic and geometric properties of manifolds are related, was sparked when Marc Kac in 1966 asked the question “can one hear the shape of a drum?”. One of the problems that garnered attention because of this was whether the Laplace spectrum of a flat torus determines its shape, even though it was not new. READ MORE

  4. 23. Spectral Portfolio Optimisation with LSTM Stock Price Prediction

    University essay from KTH/Matematisk statistik

    Author : Nancy Wang; [2020]
    Keywords : Artificial Neural Network; LSTM; Spectral factor model; Portfolio optimisation; Stock price prediction; Time series analysis; Risk estimation; Spectral risk; Frequency-specific beta decomposition; Artificiella neurala nätverk; LSTM; Spektralfaktormodell; Portföljoptimering; Aktieprispredikering; Tidsserieranalys; Riskestimering; Spektra risk; Frekvensspecifik beta dekomposition;

    Abstract : Nobel Prize-winning modern portfolio theory (MPT) has been considered to be one of the most important and influential economic theories within finance and investment management. MPT assumes investors to be riskaverse and uses the variance of asset returns as a proxy of risk to maximise the performance of a portfolio. READ MORE

  5. 24. Nonlinear Instability of Evolution Equations

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

    Author : Emil Engström; [2020]
    Keywords : Mathematics and Statistics;

    Abstract : In this thesis we explore the connection between spectral stability and nonlinear stability of evolution equations. Using semigroup theory a result on nonlinear instability from spectral instability is proven. READ MORE

  6. 25. Reduced Order Modelling using Dynamic Mode Decomposition and Koopman Spectral Analysis with Deep Learning

    University essay from Lunds universitet/Matematik LTH

    Author : David Krantz; Olof Månsson; [2020]
    Keywords : non-linear dynamical systems; modal decomposition; Koopman operator theory; machine learning; data-driven analysis; Mathematics and Statistics;

    Abstract : In the industry simulation models are commonly used in system development. These models can become complicated in order to capture the physical behaviour of the underlying dynamical system. A high-fidelity representation, which can result in long simulation times, is in some settings not strictly required. READ MORE