“…where f is defined in (2.6), is a Dirichlet ε-improvable vector in F N in the sense of [9]. To see this, let us write the N monomials in the variables X 1 , · · · , X d having total degree ≤ k as M 1 (X 1 , · · · , X d ), · · · , M N (X 1 , · · · , X d ) so that a polynomial P ∈ Λ[X 1 , · · · , X d ] will look like…”