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This tag is used if a reference is needed in a paper or textbook on a specific result.

2 votes
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2-parts of class numbers of binary quadratic forms for non-fundamental discriminants

I need a formula for the 2-adic valuation of the number of proper equivalence classes of primitive positive definite binary quadratic forms of discriminant $-D$, call it $h_0(-D)$. I'm sure the answer …
MHMertens's user avatar
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1 vote

Reference for Kronecker-Weyl theorem in full generality

Maybe I am missing something, but as far as I understand it, you can always assume the $\theta_j$ to be linearly independent over $\mathbb{Q}$, this is just a base change. A precise formulation of the …
MHMertens's user avatar
  • 189