Some remarks on the algebra of functions of two variables with bounded total $\mathrm{\Phi }$-variation in Schramm sense

This paper is devoted to discuss some generalizations of the bounded total $\mathrm{\Phi }$-variation in the sense of Schramm. This concept was defined by W. Schramm for functions of one real variable. In the paper we generalize the concept in question for the case of functions of of two variables defined on certain rectangle in the plane. The main result obtained in the paper asserts that the set of all functions having bounded total $\mathrm{\Phi }$-variation in Schramm sense has the structure of a Banach algebra.