On $L\left( {1,\chi } \right)$ and class number formula for the real quadratic fields
On $L\left( {1,\chi } \right)$ and class number formula for the real quadratic fields
1. Introduction.Let k be a positive inte- ger greater than 1, and let z(n) be a real primi- tive character modulo k.The series L(1, 27)= , 27(n) n=l can be divided into groups of k consecutive terms.Let v be any nonnegative integer, j an inte- ger, 0 <--j<--k--1, and letWe …