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Anonymouse

]]>Iterated sums and iterated integrals over semirings, where the case of tropical semiring is a central, with applications (including in machine learning),

- Joscha Diehl, Kurusch Ebrahimi-Fard, Nikolas Tapia,
*Tropical time series, iterated-sums signatures, and quasisymmetric functions*, SIAM Journal on Applied Algebra and Geometry**6**:4 (2022) arxiv:2009.08443 doi

I have touched the typesetting of the example (here)

]]>Have sorted out the start of the article.

]]>Do we really have this as a policy?

Of course not. But best to take this to the discussion in the thread on “semiring”.

]]>Trivial edit to start discussion.

What’s happening at the start here? We have both tropical rig and semiring defined. The latter is given with the extension by $\{\infty\}$. Is this just duplication with a mistake?

At semiring having given 4 definitions, it says

The nLab uses the second definition to define a semiring, and the fourth definition to define a rig. The first and third are then called nonunital semirings and nonunital rigs respectively.

Do we really have this as a policy?

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