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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 61 to 70 of 2322 (0.018 seconds)| 61 |
Natural dualities for varieties generated by lattice-structured algebrasWegener, Claudia B. January 1999 (has links)
No description available.
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Separated-frames, H-closed frames and H-closed extensions of a frameZhang, Feng Ling January 1990 (has links)
No description available.
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Seifert's algorithm, Châtelet bases and the Alexander ideals of classical knotsO'Brien, Killian Michael January 2002 (has links)
I begin by developing a procedure for the construction of a Seifert surface, using Seifert's algorithm, and the calculation of a Seifert matrix for a knot from a suitable encoding of a knot diagram. This procedure deals with the inherent indeterminacy of the diagram encoding and is fully implementable. From a Seifert matrix one can form a presentation matrix for the Alexander module of a knot and calculate generators for the Alexander ideals. But to use the Alexander ideals to their full potential to distinguish pairs of knots one needs a Gröbner basis type theory for A = Z[t,t(-1)], the ring of Laurent polynomials with integer coefficients. I prove the existence of what I call Châtelet bases for ideals in A. These are types of Gröbner bases. I then develop an algorithm for the calculation of a Châtelet basis of an ideal from any set of generators for that ideal. This is closely related to Buchberger's algorithm for Gröbner bases in other polynomial rings. Using these algorithms and the knot diagram tables in the program Knotscape I calculate Châtelet bases for the Alexander ideals of all prime knots of up to 14 crossings. We determine the number of distinct ideals that occur and find examples of pairs of mutant knots distinguished by the higher Alexander ideals but not by any of the polynomials of Alexander, Jones, Kauffman or HOMFLY.
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Topological entropy for noncompact spaces and other extensions /Hofer, Jack Edward. January 1972 (has links)
Thesis (Ph. D.)--Oregon State University, 1972. / Typescript (photocopy). Includes bibliographical references. Also available on the World Wide Web.
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On the theorems of Sard and de Rham /Short, Donald Ray, jr. January 1970 (has links)
Thesis (Ph. D.)--Oregon State University, 1970. / Typescript (photocopy). Includes bibliographical references (leaves 28). Also available on the World Wide Web.
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Über die Zerlegung eines Polygons in exklusive Dreiecke : auf Grund der ebenen Axiome der Verknüpfung und Anordnung /Becker, Oskar, January 1914 (has links)
Inaug.-diss.--Universität Leipzig. / Lebenslauf. "Verzeichnis der benutzten Literatur": p. 8-10.
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Über Kurven beschränkter OrdnungDelvendahl, Otto. January 1938 (has links)
Issued also as author's inaugural dissertation, Breslau. / Half-title: Neue deutsche Forschungen, hrsg. von Hans R.G. Günther und E. Rothacker. bd. 173.
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Über die Rechtsderivierten des inversen Limes von Modul-und GruppenfamilienBrandenburg, Jürgen. January 1967 (has links)
Issued also as thesis, Bonn. / Added t.p. with thesis statement. Includes bibliographical references (p. 62-63).
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Conditions on functions, functional convergences and self mapsFuller, Richard Vernon 08 1900 (has links)
No description available.
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Semicontinuous, quasi-compact and related multifunctionsWertheimer, Stanley Joseph 08 1900 (has links)
No description available.
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