Abstract:
In this paper, we determine the real quadratic fields Q(
p
d) coincide with positive square-free integers d
including the continued fraction expansion form of wd =
2
64
a0; 7; 7; : : : ; 7 | {z }
`1
; a`
3
7 5: Furthermore, we deal with
determining fundamental units and Yokoi’s d-invariants nd and md in the relation to continued fraction
expansion of wd where ` (d) is a period length of wd for the such type of real quadratic number fields Q(
p
d):
The present paper improve the theory of fundamental unit which generates the unit group of real quadratic
fields and also determine the special form of continued fraction expansion of integral basis element in real
quadratic fields.
