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Vanilla 1.1.10 is a product of Lussumo. More Information: Documentation, Community Support.

• CommentRowNumber1.
• CommentAuthorUrs
• CommentTimeAug 31st 2012
• (edited Aug 31st 2012)

have split off tensor product of abelian groups from tensor product and expanded slightly

• CommentRowNumber2.
• CommentAuthorUrs
• CommentTimeSep 5th 2012

added to tensor product of abelian groups the examples $A \otimes \mathbb{Z} \simeq A$ and $\mathbb{Z}_a \otimes \mathbb{Z}_b \simeq \mathbb{Z}_{LCM(a,b)}$.

• CommentRowNumber3.
• CommentAuthorUrs
• CommentTimeSep 5th 2012

In the Definition-section I have made the quotient map $A \times B \to A \otimes B$ more explicit.

• CommentRowNumber4.
• CommentAuthorUrs
• CommentTimeDec 3rd 2018
• (edited Dec 3rd 2018)

made notationally more explicit the forgetful functor $U \colon Ab \to Set$ involved in declaring the universal bilinear map (here)

1. Removed the link as it returned 404 not found.

Anonymous

• CommentRowNumber6.
• CommentAuthorDavidRoberts
• CommentTimeFeb 17th 2019

Removed reference to vanished online pdf (now without link, as removed by previous editor) and replaced it by something written by Tim Gowers.

• CommentRowNumber7.
• CommentAuthorYuxi Liu
• CommentTimeJul 4th 2020

Ab is in fact a symmetric monoidal category.

• CommentRowNumber8.
• CommentAuthorDmitri Pavlov
• CommentTimeJul 4th 2020

Added Whitney’s original paper.

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