arXiv math/98110841998-11-12math.GT

Alexander Numbering of Knotted Surface Diagrams

J. Scott Carter, Seiichi Kamada, Masahico Saito

备注：: 10 pages, 9 figures (files in eps format). Downloading of postscript file is better

英文摘要：

A formula that relates triple points, branch points, and their distances from infinity is presented. We recover trivial normal Euler classes for oriented surfaces, and formulas on signed triple points.

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