On the Total Variation of a Function of two Variables<sup>*</sup>
On the Total Variation of a Function of two Variables<sup>*</sup>
The corrections detailed below are necessitated by the discovery that a certain formula, given by Saksā for the area of a continuous surface z = f(z,y), is not correct for all such surfaces without restriction. (i) In Theorem 1, on p. 294, at the end of the last sentence but ā¦