Relationships Between the Nonorientable Genus and the Normal Euler Number of Nonorientable Surfaces Whose Boundary Is a Knot
Başlık:
Relationships Between the Nonorientable Genus and the Normal Euler Number of Nonorientable Surfaces Whose Boundary Is a Knot
Yazar:
Allen, Samantha, author.
ISBN:
9780438074446
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (80 pages)
Genel Not:
Source: Dissertation Abstracts International, Volume: 79-11(E), Section: B.
Advisors: Charles Livingston Committee members: James Davis; Michael Larsen; Kent Orr.
Özet:
The nonorientable 4-genus is an invariant of knots which has been studied by many authors, including Gilmer and Livingston, Batson, and Ozsvath, Stipsicz, and Szabo. Given a nonorientable surface F in the 4-ball with boundary a knot, an analysis of the existing methods for bounding and computing the nonorientable 4-genus reveals relationships between the first Betti number of F and the normal Euler class of F. This relationship yields a geography problem. We explore this problem for families of torus knots. In addition, we use the Ozsvath-Szabo d-invariant of two-fold branched covers to give finer information on the geography problem. We present an infinite family of knots where this information provides an improvement upon the bound given by Ozsvath, Stipsicz, and Szabo using the Upsilon invariant.
Notlar:
School code: 0093
Konu Başlığı:
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(693886.1) | 693886-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
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