Research keywords (4)：
real quadratic fields of minimal type
, continued fraction
, fundamental unit
, real quadratic field
Research theme for competitive and other funds (1)：
2015 - 2019 Study of real quadratic fields by using continued fractions
Papers (3)：
Fuminori Kawamoto, Yasuhiro Kishi, Koshi Tomita. Construction of positive integers with even period of minimal type. PROCEEDINGS OF THE JAPAN ACADEMY SERIES A-MATHEMATICAL SCIENCES. 2014. 90. 2. 27-32
