We show that the category of (reflexive) graphs and graph maps carries exactly two closed symmetric monoidal products: the box product and the categorical product.
Keywords: graph, product, monoidal category, Day convolution
2020 MSC: 18M05, 05C76
Theory and Applications of Categories, Vol. 41, 2024, No. 23, pp 760-784.
Published 2024-07-16.
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