Geodesic
On the algebra of the Möbius crown
Zapiski Nauchnykh Seminarov POMI, Problems in the theory of representations of algebras and groups. Part 35, Tome 492 (2020), pp. 149-156 Cet article a éte moissonné depuis la source Math-Net.Ru

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A commutative algebra over a field gives rise to a representation of the category of finite sets and surjective maps. We consider the restriction of this representation to the subcategory of sets of cardinality at most $r$. For each $r$, we present two non-isomorphic algebras that give rise to isomorphic representations of this subcategory. 
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     title = {On the algebra of the {M\"obius} crown},
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S. S. Podkorytov. On the algebra of the Möbius crown. Zapiski Nauchnykh Seminarov POMI, Problems in the theory of representations of algebras and groups. Part 35, Tome 492 (2020), pp. 149-156. http://geodesic.mathdoc.fr/item/ZNSL_2020_492_a10/

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