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How to Depict 5-Dimensional Manifolds

机译:如何描述5维流形

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摘要

We usually think of 2-dimensional manifolds as surfaces embedded in Euclidean 3-space. Since humans cannot visualise Euclidean spaces of higher dimensions, it appears to be impossible to give pictorial representations of higher-dimensional manifolds. However, one can in fact encode the topology of a surface in a 1-dimensional picture. By analogy, one can draw 2-dimensional pictures of 3-manifolds (Heegaard diagrams), and 3-dimensional pictures of 4-manifolds (Kirby diagrams). With the help of open books one can likewise represent at least some 5-manifolds by 3-dimensional diagrams, and contact geometry can be used to reduce these to drawings in the 2-plane. In this paper, I shall explain how to draw such pictures and how to use them for answering topological and geometric questions. The work on 5-manifolds is joint with Fan Ding and Otto van Koert.
机译:我们通常将二维流形视为嵌入在欧几里得3空间中的曲面。由于人类无法可视化更高维的欧几里得空间,因此似乎无法给出高维流形的图形表示。但是,实际上可以编码一维图片中表面的拓扑。以此类推,可以绘制3个流形的2维图片(Heegaard图)和4个流形的3维图片(Kirby图)。借助于打开的书,人们同样可以通过3维图表示至少一些5流形,并且可以使用接触几何将其简化为2平面中的图形。在本文中,我将解释如何绘制此类图片以及如何将其用于回答拓扑和几何问题。 5流形的工作是与范丁和奥托·范·科特共同完成的。

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