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Heegner number

From Wiktionary, the free dictionary

English

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English Wikipedia has an article on:
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Etymology

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Named after Kurt Heegner, German mathematician.

Noun

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Heegner number (plural Heegner numbers)

  1. (mathematics) A squarefree positive integer d such that the imaginary quadratic field Q(√(−d)) has class number 1; equivalently, such that its ring of integers has unique factorization.
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