SPIEGELUNGSSATZ: A COMBINATORIAL PROOF FOR THE 4-RANK
2011 ◽
Vol 07
(08)
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pp. 2157-2170
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The Spiegelungssatz is an inequality between the 4-ranks of the narrow ideal class groups of the quadratic fields [Formula: see text] and [Formula: see text]. We provide a combinatorial proof of this inequality. Our interpretation gives an affine system of equations that allows to describe precisely some equality cases.
1972 ◽
Vol 31
(2)
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pp. 433-433
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1970 ◽
Vol 46
(5)
◽
pp. 401-403
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2013 ◽
Vol 53
(4)
◽
pp. 845-887
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