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An Invariant of Links on Surfaces via Hopf Algebra Bundles

Borland, Alexander I

Abstract Details

2017, Doctor of Philosophy, Ohio State University, Mathematics.
One semi-classical knot invariant involves turning a knot diagram into a curve in ℝ2 which is "decorated" by elements of a ribbon Hopf algebra H. A decorated curve is turned into an element of H using a form of pictoral calculus. The image of this element in a certain quotient space of H defines a framed knot invariant. We generalize this process to define an invariant of links in a thickened surface Σ × [0, 1], where Σ is a connected, oriented surface. In this process, we develop a theory of decorated curves in an arbitrary smooth manifold M using a balanced, flat ribbon Hopf algebra bundle E → M with typical fiber H. The link invariant is defined using decorated curves in the unit tangent bundle of T1Σ, and takes values in the quotient space of the semi-direct product k[ π1(M , b_0) ] ⊗ H. We also define local diagrams to picture the decorated curves. The original pictoral calculus for decorated curves in ℝ2 is recaptured by viewing decorated curves in T1Σ through these local diagrams.
Thomas Kerler (Advisor)
Sergei Chmutov (Committee Member)
Henri Moscovici (Committee Member)
208 p.

Recommended Citations

Citations

  • Borland, A. I. (2017). An Invariant of Links on Surfaces via Hopf Algebra Bundles [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1503183775028923

    APA Style (7th edition)

  • Borland, Alexander. An Invariant of Links on Surfaces via Hopf Algebra Bundles. 2017. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1503183775028923.

    MLA Style (8th edition)

  • Borland, Alexander. "An Invariant of Links on Surfaces via Hopf Algebra Bundles." Doctoral dissertation, Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1503183775028923

    Chicago Manual of Style (17th edition)