Dirichlet Structure Constant

(1)

where  is the fundamental unit and  is the number of substitutions which leave the binary quadratic form unchanged, given by

(2)

REFERENCES:

Cohen, H. A Course in Computational Algebraic Number Theory. New York: Springer-Verlag, 1993.

Cohen, H. Advanced Topics in Computational Number Theory. New York: Springer-Verlag, 2000.

Cohn, H. Advanced Number Theory. New York: Dover, 1980.