In the field of Geometric Function Theory, one can not deny the importance of analytic and univalent functions. The characteristics of these functions including their taylor series expansion, their coefficients in these representations as well as their associated functional inequalities have always attracted the researchers. In particular, Fekete-Szegö inequality is one of such vastly studied a...

We introduce the Schur class of functions, discrete analytic on integer lattice in complex plane. As a special case, we derive explicit form Blaschke factors and solve related basic interpolation problem.