Subrings in imaginary quadratic fields which
 are not universal for $GE_2$

Wydawnictwa / Czasopisma IMPAN / Acta Arithmetica / Wszystkie zeszyty

Sheng Chen, Hong You Acta Arithmetica 107 (2003), 299-305 MSC: Primary 19F15; Secondary 11R11. DOI: 10.4064/aa107-3-6

Sheng ChenDepartment of Mathematics
Harbin Institute of Technology
Harbin 150001, P.R. China
Hong YouDepartment of Mathematics
Harbin Institute of Technology
Harbin 150001, P.R. China
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