Direct products of cyclic semigroups and left zero semigroups in $\beta\mathbb{N}$
نویسندگان
1 School of Mathematics, University of the Witwatersrand, Private Bag 3, Wits 2050, South Africa.
doi
10.48308/cgasa.2023.233625.1436چکیده
We show that for every $n\in\mathbb{N}$, the direct product of the cyclic semigroup of order $n$ and period $1$ and the left zero semigroup $2^\mathfrak{c}$ has copies in $\beta\mathbb{N}$.
