Abstract

with P. Huovinen, Points of ε differentiability of Lipschitz functions Rⁿ → R^n-1 , Bull. London Math. Soc., 34(5), 2002. 539-550.

This paper proves that for every Lipschitz function f : Rⁿ → R^n-1 there exists at least one point of ε differentiability of f which is the union of all n-1 dimensional affine subspaces of the form q₀ + span{q₁,...,q_n-1} where q_j, j=0,...,n-1, are points in Rⁿ with rational coordinates.

with P. Huovinen, Points of ε differentiability of Lipschitz functions Rn → Rn-1 , Bull. London Math. Soc., 34(5), 2002. 539-550.

with P. Huovinen, Points of ε differentiability of Lipschitz functions Rⁿ → R^n-1 , Bull. London Math. Soc., 34(5), 2002. 539-550.