arXiv · 1009.3990
I present Franz Lemmermeyer's proof that if p is a prime congruent to 9 mod 16 then the class number of Q(p^(1/4)) is congruent to 2 mod 4.
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Paul Monsky. 2010-09-21. A result of Lemmermeyer on class numbers. https://arxiv.org/abs/1009.3990
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