PageHeader : Funkcialaj Ekvacioj, 24 (1981) 95-102 Title : Partial Difference Equations Analogous Title : to the Cauchy-Riemann Equations AuthorInfo : By AuthorInfo : J. ACZEL and S. HARUKI AuthorInfo : (University of Waterloo, Canada and Okayama University of Science, Japan) section : 1. Introduction section : 2. Equations (2), (3) and their generalizations section : 3. Equation (4) section : 4. A generalization section : References