2 problems

Let $\tau$ be a linear fractional transformation of order $2$, and let a bigrid be an array with entries $\gamma(\epsilon,i,j)$ wherever they are defined. Let a bigrid be perfect i…

Let a bigrid be an array with entries $\gamma(\epsilon,i,j)$, where the indices are taken wherever the entries are defined, and let a bigrid be perfect in the sense defined in the…