Sökning: "fat graph"

Hittade 3 uppsatser innehållade orden fat graph.

  1. 1. The Dynamics of Sectoral Network Formation

    D-uppsats, Handelshögskolan i Stockholm/Institutionen för nationalekonomi

    Författare :Tadas Gedminas; [2018]
    Nyckelord :random graph model; WIOD; input-output network;

    Sammanfattning : Recent studies have highlighted the role that linkages between firms and sectors play in impacting shock transmission, R&D development and expansion of trade relationships. However, mechanisms that govern how these linkages form and develop over time are not fully understood. LÄS MER

  3. 2. Feynman Diagrams and Map Enumeration

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Teoretisk fysik

    Författare :August Egebrand; [2016]
    Nyckelord :;

    Sammanfattning : The goal of this thesis is to count how many graphs exist given a number of verticesor some other restrictions. The graphs are counted by perturbing Gaussian integralsand using the Wick lemma to interpret the perturbations in terms of graphs. Fatgraphs, a specific type of graph, are central in this thesis. LÄS MER

  4. 3. Matrix Integrals : Calculating Matrix Integrals Using Feynman Diagrams

    Kandidat-uppsats, Uppsala universitet/Teoretisk fysik

    Författare :Adam Friberg; [2014]
    Nyckelord :fat graph; feynman diagram; matrix integral; perturbative expansion; wick s theorem;

    Sammanfattning : In this project, we examine how integration over matrices is performed. We investigate and develop a method for calculating matrix integrals over the set of real square matrices. LÄS MER