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Partially Ordered Groups and RingsLott, Kenneth L. 08 1900 (has links)
This report presents both the most essential known results and new results in the theory of partially ordered groups and rings. This report deals with partially ordered groups and rings in an algebraic aspect because it is more important than partially ordered, fully ordered and lattice-ordered semigroup theory.
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Completeness Axioms in an Ordered FieldCarter, Louis Marie 12 1900 (has links)
The purpose of this paper was to prove the equivalence of the following completeness axioms. This purpose was carried out by first defining an ordered field and developing some basic theorems relative to it, then proving that lim [(u+u)*]^n = z (where u is the multiplicative identity, z is the additive identity, and * indicates the multiplicative inverse of an element), and finally proving the equivalence of the five axioms.
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Preservation theorems for algebraic and relational models of logicMorton, Wilmari 30 July 2013 (has links)
A thesis submitted to the School of Computer Science,
Faculty of Science,
University of the Witwatersrand, Johannesburg
in fulfilment of the requirements for the degree of Doctor of Philosophy. Johannesburg, 15 May 2013 / In this thesis a number of different constructions on ordered algebraic structures
are studied. In particular, two types of constructions are considered: completions
and finite embeddability property constructions.
A main theme of this thesis is to determine, for each construction under
consideration, whether or not a class of ordered algebraic structures is closed
under the construction. Another main focus of this thesis is, for a particular
construction, to give a syntactical description of properties preserved by the
construction. A property is said to be preserved by a construction if, whenever
an ordered algebraic structure satisfies it, then the structure obtained through
the construction also satisfies the property.
The first four constructions investigated in this thesis are types of completions.
A completion of an ordered algebraic structure consists of a completely
lattice ordered algebraic structure and an embedding that embeds the former
into the latter. Firstly, different types of filters (dually, ideals) of partially ordered
sets are investigated. These are then used to form the filter (dually, ideal)
completions of partially ordered sets. The other completions of ordered algebraic
structures studied here include the MacNeille completion, the canonical
extension (also called the completion with respect to a polarization) and finally
a prime filter completion.
A class of algebras has the finite embeddability property if every finite partial
subalgebra of some algebra in the class can be embedded into some finite
algebra in the class. Firstly, two constructions that establish the finite embeddability
property for residuated ordered structures are investigated. Both of
these constructions are based on completion constructions: the first on the Mac-
Neille completion and the second on the canonical extension. Finally, algebraic
filtrations on modal algebras are considered and a duality between algebraic and
relational versions of filtrations is established.
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Ordered Frechet spaces.January 1977 (has links)
Cheng Hon-wing. / Thesis (M.Phil.)--Chinese University of Hong Kong. / Bibliography: leaf 29.
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Ordered ranked set samples and applications to statistical inferenceLi, Tao. Balakrishnan, N., January 2005 (has links)
Thesis (Ph.D.)--McMaster University, 2005. / Supervisor: N. Balakrishnan. Includes bibliographical references (p. 148-152).
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T-Split interval orders /Moller, Trisha, January 2004 (has links)
Thesis (Ph. D.)--Lehigh University, 2004. / Includes vita. Includes bibliographical references (leaves 73-74).
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On the dimension of partially ordered setsKomm, Horace. January 1900 (has links)
Thesis--University of Michigan. / "Reprinted from American journal of mathematics, vol. LXX, no. 3, July, 1948."
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On bosets and fundamental semigroupsRoberts, Brad, January 2007 (has links)
Thesis (Ph. D.)--University of Sydney, 2007. / Title from title screen (viewed 19 January 2009). Submitted in fulfilment of the requirements for the degree of Doctor of Philosophy to the School of Mathematics and Statistics. Includes bibliographical references. Also available in print form.
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The Fatigue of Ordered Cu3AuYoung, Alistair G 10 1900 (has links)
Current theories to explain the st!'engthening caused by
ordering a.re reviewed. Localization of slip was observed to occur
during high strain reverse bending, and was associated with crack
initiation. A mechanism for the breakdown of order strengthening
mechanisms is suggested as an explanation for this localization. / Thesis / Master of Science (MS)
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On Ordered Pairs of Cardinal NumbersDickinson, John Dean 01 1900 (has links)
This thesis is on ordered pairs of cardinal numbers.
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