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1. • CommentRowNumber1.
   • CommentAuthorUrs
   • CommentTimeMay 30th 2011
   • PermaLink
   Author: Urs
   Format: MarkdownItexadded statements of some basic properties to [[ribbon graph]]

   added statements of some basic properties to ribbon graph

2. • CommentRowNumber2.
   • CommentAuthorUrs
   • CommentTimeMay 30th 2011
   • PermaLink
   Author: Urs
   Format: MarkdownItexadded statements of relation to classifying spaces of mapping class groups to [[ribbon graphs]]

   added statements of relation to classifying spaces of mapping class groups to ribbon graphs

3. • CommentRowNumber3.
   • CommentAuthorUrs
   • CommentTimeMay 31st 2011
   • PermaLink
   Author: Urs
   Format: MarkdownItexspelled out the definition more formally at [[ribbon graph]]

   spelled out the definition more formally at ribbon graph

4. • CommentRowNumber4.
   • CommentAuthorUrs
   • CommentTimeJan 4th 2020
   • PermaLink
   Author: Urs
   Format: MarkdownItexadded pointer to survey in the context of [[weight systems]] on [[chord diagrams]]/[[Jacobi diagrams]]: * [[Sergei Chmutov]], [[Sergei Duzhin]], [[Jacob Mostovoy]], Section 7 of: _Introduction to Vassiliev knot invariants_, Cambridge University Press, 2012 ([arxiv:1103.5628](http://arxiv.org/abs/1103.5628), [doi:10.1017/CBO9781139107846](https://doi.org/10.1017/CBO9781139107846)) <a href="https://ncatlab.org/nlab/revision/diff/ribbon+graph/20">diff</a>, <a href="https://ncatlab.org/nlab/revision/ribbon+graph/20">v20</a>, <a href="https://ncatlab.org/nlab/show/ribbon+graph">current</a>

   added pointer to survey in the context of weight systems on chord diagrams/Jacobi diagrams:

   • Sergei Chmutov, Sergei Duzhin, Jacob Mostovoy, Section 7 of: Introduction to Vassiliev knot invariants, Cambridge University Press, 2012 (arxiv:1103.5628, doi:10.1017/CBO9781139107846)

   diff, v20, current

5. • CommentRowNumber5.
   • CommentAuthorDavid_Corfield
   • CommentTimeJan 9th 2020
   • PermaLink
   Author: David_Corfield
   Format: MarkdownItexAdded a link to [[ribbon category]], but preferably one would say more. What is there to say? >Ribbon graphs are the free ribbon category, in the sense that there is a unique functor from the category of labeled ribbon graphs to your category that respects everything you want it to. ([MO answer](https://mathoverflow.net/a/194/447)) <a href="https://ncatlab.org/nlab/revision/diff/ribbon+graph/21">diff</a>, <a href="https://ncatlab.org/nlab/revision/ribbon+graph/21">v21</a>, <a href="https://ncatlab.org/nlab/show/ribbon+graph">current</a>

   Added a link to ribbon category, but preferably one would say more. What is there to say?

   Ribbon graphs are the free ribbon category, in the sense that there is a unique functor from the category of labeled ribbon graphs to your category that respects everything you want it to. (MO answer)

   diff, v21, current