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arXiv · 1305.3233

On Extensions of Polynomial Functors

Qimh Richey Xantcha
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Abstract

A formula for calculating Extensions of (mainly integral) Polynomial Functors is established, based upon projective resolutions. Sample computations are performed, which, in particular, exhibit a surprising non-trivial extension of Divided Cubes by Symmetric Cubes. An explicit description of the latter is given.

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Qimh Richey Xantcha. 2013-05-12. On Extensions of Polynomial Functors. https://arxiv.org/abs/1305.3233

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