Cellular structure of the torus with two holes

In course

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Description

This lecture explains the cellular structure of the torus with two holes, obtained by summing two simple tori. Starting from the torus boundary, it constructs a wedge of four circles, then adds a 2-cell to form the torus. The attachment process is described using an octagon and the fundamental group of a wedge of four circles.

Instructor

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Official source

https://mediaspace.epfl.ch/media/0_5klcrajz

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