Displaying similar documents to “The Quaternion Numbers”

Strong functors on many-sorted sets

Paul B. Levy (2019)

Commentationes Mathematicae Universitatis Carolinae

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We show that, on a category of many-sorted sets, the only functors that admit a cartesian strength are those that are given componentwise.

The structure of the tensor product of 𝔽 2 [ - ] with a finite functor between 𝔽 2 -vector spaces

Geoffrey M. L. Powell (2000)

Annales de l'institut Fourier

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The paper studies the structure of functors I F in the category of functors from finite dimensional 𝔽 2 -vector spaces to 𝔽 2 -vector spaces, where F is a finite functor and I is the injective functor V 𝔽 2 V * . A detection theorem is proved for sub-functors of such functors, which is the basis of the proof that the functors I F are artinian of type one.