Alexander numbering of knotted surface diagrams

Author:

Carter J.,Kamada Seiichi,Saito Masahico

Abstract

A generic projection of a knotted oriented surface in 4-space divides 3 3 -space into regions. The number of times (counted with sign) that a path from infinity to a given region intersects the projected surface is called the Alexander numbering of the region. The Alexander numbering is extended to branch and triple points of the projections. A formula that relates these indices is presented.

Publisher

American Mathematical Society (AMS)

Subject

Applied Mathematics,General Mathematics

Reference28 articles.

1. Alexander, J.W., A lemma on systems of knotted curves, Proc. Nat. Acad. Science USA, 9 (1923), 93-95.

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3. Double tangency theorems for pairs of submanifolds;Banchoff, Thomas F.,1981

4. Carter, J.S., Carrara V., and Saito, M. Singularities of the projections of surfaces in 4-space, Preprint.

5. Canceling branch points on projections of surfaces in 4-space;Carter, J. Scott;Proc. Amer. Math. Soc.,1992

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