Now showing items 1-14 of 14

  • Zero-sum problems in finite cyclic groups 

    Plyley, Chris. (Brock University, 2009-01-28)
    The purpose of this thesis is to investigate some open problems in the area of combinatorial number theory referred to as zero-sum theory. A zero-sequence in a finite cyclic group G is said to have the basic property if ...
  • The von Neumann Minimax Theorem and its relatives and a study of externality in on-line auctions 

    Malekan, Samaneh (2012-03-30)
    This work consists of a theoretical part and an experimental one. The first part provides a simple treatment of the celebrated von Neumann minimax theorem as formulated by Nikaid6 and Sion. It also discusses its relationships ...
  • Response curves of deterministic and probabilistic cellular automata in one and two dimensions 

    Skelton, Andrew (2012-04-02)
    One of the most important problems in the theory of cellular automata (CA) is determining the proportion of cells in a specific state after a given number of time iterations. We approach this problem using patterns in ...
  • Square Root Finding In Graphs 

    Karimi, Majid (Brock University, 2013-01-24)
    Abstract: Root and root finding are concepts familiar to most branches of mathematics. In graph theory, H is a square root of G and G is the square of H if two vertices x,y have an edge in G if and only if x,y are of ...
  • Rings, Group Rings, and Their Graphs 

    Aliniaeifard, Farid (Brock University, 2013-09-05)
    We associate some graphs to a ring R and we investigate the interplay between the ring-theoretic properties of R and the graph-theoretic properties of the graphs associated to R. Let Z(R) be the set of zero-divisors of R. ...
  • Acyclic 5-Choosability of Planar Graphs Without Adjacent Short Cycles 

    Ferreri, Susanna (Brock University, 2013-09-05)
    The conjecture claiming that every planar graph is acyclic 5-choosable[Borodin et al., 2002] has been verified for several restricted classes of planargraphs. Recently, O. V. Borodin and A. O. Ivanova, [Journal of Graph ...
  • Edge-choosability of Planar Graphs 

    Mashhadi Avaz Tehrani, Hediyeh (Brock University, 2013-09-26)
    According to the List Colouring Conjecture, if G is a multigraph then χ' (G)=χl' (G) . In this thesis, we discuss a relaxed version of this conjecture that every simple graph G is edge-(∆ + 1)-choosable as by Vizing’s ...
  • A game-theoretic network formation model 

    Atabati, Omid (Brock University, 2014-07-23)
    We study the dynamics of a game-theoretic network formation model that yields large-scale small-world networks. So far, mostly stochastic frameworks have been utilized to explain the emergence of these networks. On the ...
  • Prime Rational Functions and Integral Polynomials 

    Larone, Jesse (Brock University, 2015-01-05)
    Let f(x) be a complex rational function. In this work, we study conditions under which f(x) cannot be written as the composition of two rational functions which are not units under the operation of function composition. ...
  • Dynamics in large scale networks 

    Clements, John
    In this thesis we study the properties of two large dynamic networks, the competition network of advertisers on the Google and Bing search engines and the dynamic network of friend relationships among avatars in the ...
  • Using PageRank Algorithm in Analyzing Dictionary Graphs and PageRank in Dynamic Graphs 

    Salarinezhad, Asefeh
    In this thesis we are going to analyze the dictionary graphs and some other kinds of graphs using the PagerRank algorithm. We calculated the correlation between the degree and PageRank of all nodes for a graph obtained ...
  • Community Detection in Multi-Layer Networks 

    Pichugina, Oksana
    In the scope of the current thesis we review and analyse networks that are formed by nodes with several attributes. We suppose that different layers of communities are embedded in such networks, besides each of the layers ...
  • Backbone Colouring of Graphs 

    Golestanian, Arnoosh
    Consider an undirected graph G and a subgraph of G, H. A q-backbone k-colouring of (G,H) is a mapping f: V(G) {1, 2, ..., k} such that G is properly coloured and for each edge of H, the colours of its endpoints differ by ...
  • Optimal and Robust Designs of Step-stress Accelerated Life Testing Experiments for Proportional Hazards Models 

    Huang, Wan-yi
    Accelerated life testing (ALT) is widely used to obtain reliability information about a product within a limited time frame. The Cox s proportional hazards (PH) model is often utilized for reliability prediction. My ...