Browsing Pure Mathematics by Title
Now showing items 120 of 118

2Semilattices: Residual Properties and Applications to the Constraint Satisfaction Problem
(University of Waterloo, 20170822)Semilattices are algebras known to have an important connection to partially ordered sets. In particular, if a partially ordered set $(A,\leq)$ has greatest lower bounds, a semilattice $(A;\wedge)$ can be associated to the ... 
Abstract and Explicit Constructions of Jacobian Varieties
(University of Waterloo, 20180810)Abelian varieties, in particular Jacobian varieties, have long attracted interest in mathematics. Their influence pervades arithmetic geometry and number theory, and understanding their construction was a primary motivator ... 
Algebraic characterization of multivariable dynamics
(University of Waterloo, 20090326)Let X be a locally compact Hausdorﬀ space along with n proper continuous maps σ = (σ1 , · · · , σn ). Then the pair (X, σ) is called a dynamical system. To each system one can associate a universal operator algebra called ... 
The Algebraic KirchbergPhillips Conjecture for Leavitt Path Algebras
(University of Waterloo, 20150918)This essay is meant to be an exposition of the theory of Leavitt path algebras and graph C*algebras, with an aim to discuss some current classification questions. These two classes of algebras sit on opposite sides of a ... 
Amenability for the Fourier Algebra
(University of Waterloo, 20070829)The Fourier algebra A(G) can be viewed as a dual object for the group G and, in turn, for the group algebra L1(G). It is a commutative Banach algebra constructed using the representation theory of the group, and from which ... 
Approximation Constants for Closed Subschemes of Projective Varieties
(University of Waterloo, 20190619)Diophantine approximation is a branch of number theory with a long history, going back at least to the work of Dirichlet and Liouville in the 1840s. The innocentlooking question of how well an arbitrary real algebraic ... 
Artin's Conjecture: Unconditional Approach and Elliptic Analogue
(University of Waterloo, 20080811)In this thesis, I have explored the different approaches towards proving Artin's `primitive root' conjecture unconditionally and the elliptic curve analogue of the same. This conjecture was posed by E. Artin in the year ... 
Artin's Primitive Root Conjecture and its Extension to Compositie Moduli
(University of Waterloo, 20080811)If we fix an integer a not equal to 1 and which is not a perfect square, we are interested in estimating the quantity N_{a}(x) representing the number of prime integers p up to x such that a is a generator of the cyclic ... 
Asymptotic Distributions for Block Statistics on Noncrossing Partitions
(University of Waterloo, 20140123)The set of noncrossing partitions was first studied by Kreweras in 1972 and was known to play an important role in combinatorics, geometric group theory, and free probability. In particular, it has a natural embedding ... 
Asymptotic Estimates for Rational Spaces on Hypersurfaces in Function Fields
(University of Waterloo, 20100629)The ring of polynomials over a finite field has many arithmetic properties similar to those of the ring of rational integers. In this thesis, we apply the HardyLittlewood circle method to investigate the density of rational ... 
Branched Covering Constructions and the Symplectic Geography Problem
(University of Waterloo, 20080815)We apply branched covering techniques to construct minimal simplyconnected symplectic 4manifolds with small χ_h values. We also use these constructions to provide an alternate proof that for each s ≥ 0, there exists a ... 
Classical Field Theory in the BV Formalism
(University of Waterloo, 20160920)This document is a review of the perspective on classical eld theories presented in [2] and [3]. 
Classification of Finitely Generated Operator Systems
(University of Waterloo, 20180122)For the past few decades operator systems and their C*envelopes have provided an invaluable tool for studying the theory of C*algebras and positive maps. They provide the natural context in which to study the theory of ... 
Classification of Nilpotent Lie Algebras of Dimension 7 (over Algebraically Closed Field and R)
(University of Waterloo, 1998)This thesis is concerned with the classification of 7dimensional nilpotent Lie algebras. Skjelbred and Sund have published in 1977 their method of constructing all nilpotent Lie algebras of dimension <i>n</i> given those ... 
The Cohomology Ring of a Finite Abelian Group
(University of Waterloo, 20130125)The cohomology ring of a finite cyclic group was explicitly computed by Cartan and Eilenberg in their 1956 book on Homological Algebra. It is surprising that the cohomology ring for the next simplest example, that of a ... 
COMPATIBILITY OF EXTENSIONS OF A COMBINATORIAL GEOMETRY
(University of Waterloo, 20160929)Two extensions of a geometry are compatible with each other if they have a common extension. If the given extensions are elementary, their compatibility can be intrinsically described in terms of their corresponding linear ... 
Complexity of Classes of Structures
(University of Waterloo, 20130828)The main theme of this thesis is studying classes of structures with respect to various measurements of complexity. We will briefly discuss the notion of computable dimension, while the breadth of the paper will focus on ... 
Compressions of Compact Tuples
(Elsevier, 20190301)We study the matrix range of a tuple of compact operators on a Hilbert space and examine the notions of minimal, nonsingular, and fully compressed tuples. In this pursuit, we refine previous results by characterizing ... 
Computability Theory and Some Applications
(University of Waterloo, 20190715)We explore various areas of computability theory, ranging from applications in computable structure theory primarily focused on problems about computing isomorphisms, to a number of new results regarding the degreetheoretic ... 
Contributions to the model theory of partial differential fields
(University of Waterloo, 20130828)In this thesis three topics on the model theory of partial differential fields are considered: the generalized Galois theory for partial differential fields, geometric axioms for the theory of partial differentially closed ...