#
nLab

2-category of 2-dimensional cobordisms

This is a special case of the $(\infty,n)$-category of cobordisms.

## References

A complete generators and relations presentation of the 2-dimensional extended unoriented oriented bordism bicategory as a symmetric monoidal bicategory is given in

- Chris Schommer-Pries,
*The classification of two-dimensional extended topological field theories* PhD thesis, UC Berkeley (2009) (pdf)

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The 2-category theory in Schommer-Pries’ thesis relies on a thesis by a student of Ross Street:

- Paddy McCrudden,
*Balanced coalgebroids* , Theory and Applications of Categories 7 (2000), 71-147. (tac)

Last revised on January 21, 2010 at 14:46:06.
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