Pure Mathematics Theses: Recent submissions

Now showing items 56-60 of 76

    • Ends of semigroups 

      Craik, Simon (University of St Andrews, 2013) - Thesis
      The aim of this thesis is to understand the algebraic structure of a semigroup by studying the geometric properties of its Cayley graph. We define the notion of the partial order of ends of the Cayley graph of a semigroup. ...

    • Random generation and chief length of finite groups 

      Menezes, Nina E. (University of St Andrews, 2013) - Thesis
      Part I of this thesis studies P[subscript(G)](d), the probability of generating a nonabelian simple group G with d randomly chosen elements, and extends this idea to consider the conditional probability P[subscript(G,S ...

    • Endomorphisms of Fraïssé limits and automorphism groups of algebraically closed relational structures 

      McPhee, Jillian Dawn (University of St Andrews, 2012-11-30) - Thesis
      Let Ω be the Fraïssé limit of a class of relational structures. We seek to answer the following semigroup theoretic question about Ω. What are the group H-classes, i.e. the maximal subgroups, of End(Ω)? Fraïssé limits for ...

    • Topics in combinatorial semigroup theory 

      Maltcev, Victor (University of St Andrews, 2012-11-30) - Thesis
      In this thesis we discuss various topics from Combinatorial Semigroup Theory: automaton semigroups; finiteness conditions and their preservation under certain semigroup theoretic notions of index; Markov semigroups; ...

    • Presentations and efficiency of semigroups 

      Ayik, Hayrullah (University of St Andrews, 1998) - Thesis
      In this thesis we consider in detail the following two problems for semigroups: (i) When are semigroups finitely generated and presented? (ii) Which families of semigroups can be efficiently presented? We also consider ...