. "000271302100002" . "Acta Arithmetica" . . . "On the group of circular units of any compositum of quadratic fields" . "On the group of circular units of any compositum of quadratic fields" . "PL - Polsk\u00E1 republika" . "On the group of circular units of any compositum of quadratic fields"@en . "1"^^ . "139(2009)" . . . "1"^^ . . "14310" . "compositum of quadratic fields; circular units; the index of circular units; class number"@en . "On the group of circular units of any compositum of quadratic fields"@en . . . "Polick\u00FD, Zden\u011Bk" . . . . "5"^^ . "[710FA4521AE5]" . "RIV/00216224:14310/09:00029490" . . "0065-1036" . . "2" . . "RIV/00216224:14310/09:00029490!RIV10-GA0-14310___" . . "This paper studies the group of circular units C of a compositum of quadratic fields. If the ramification index e at 2 is equal to 1 or 2 then we already know a basis and the index of C. Therefore this paper deals with the remaining case e = 4."@en . "This paper studies the group of circular units C of a compositum of quadratic fields. If the ramification index e at 2 is equal to 1 or 2 then we already know a basis and the index of C. Therefore this paper deals with the remaining case e = 4." . . "331522" . "P(GA201/07/0191)" .