34 citations · 55 across the 9 of their papers we have counts for
4 papers · 1 filter
Two monads on the category of graphs
Gejza Jenča
We introduce two monads on the category of graphs and prove that their Eilenberg-Moore categories are isomorphic to the category of perfect matchings and the category of partial St…
Effect algebras as presheaves on finite Boolean algebras
Gejza Jenča
For an effect algebra , we examine the category of all morphisms from finite Boolean algebras into . This category can be described as a category of elements of a presheaf $R…
A note on unitizations of generalized effect algebras
Gejza Jenča
There is a forgetful functor from the category of generalized effect algebras to the category of effect algebras. We prove that this functor is a right adjoint and that the corresp…
On monoids in the category of sets and relations
Anna Jenčová, Gejza Jenča
The category is the category of sets (objects) and relations (morphisms). Equipped with the direct product of sets, is a monoidal category. Moreover,…