Benjamin, E.Lemmermeyer, F.Snyder, C.2016-02-082016-02-0820070030-8730http://hdl.handle.net/11693/23573We study the index of the group of units in the genus field of an imaginary quadratic number field modulo the subgroup generated by the units of the quadratic subfields (over ℚ) of the genus field.EnglishKuroda ' s class number formulaMultiquadratic fieldsUnit indexOn the unit group of some multiquadratic number fieldsArticle10.2140/pjm.2007.230-271945-5844