The Monthly publishes articles, as well as notes and other features, about mathematics and the profession. Its readers span a broad spectrum of mathematical interests, and include professional ...

In 2020 İlkhan et al. [10] defined Jordan’s totient matrix operator. In this paper, the Jordan totient matrix operator Ar and I – convergence are used to define two new sequence spaces, C 0( Φ,Ψ,ϒ ) I ...