“…To demonstrate the features of this approach, we consider the following problem. As proposed in [8,9], we describe the conductivity by the function f b (r) = N 0 a k p bk ; a k = (0, 1, ...., p − 1); k ∈ Z. The coefficients a k are here equal to the coefficients in the p-adic number representation defined by the series rr = N 0 a k p k ; a k = (0, 1, ...., p − 1); k ∈ Z.…”