Source: wikibot/heegner-s-lemma
= Heegner's lemma
{wiki=Heegner's_lemma}
Heegner's lemma is a result in number theory that is primarily concerned with the representation of integers as sums of squares. It plays an important role in the theory of quadratic forms and has implications in the study of class numbers and other aspects of algebraic number theory. Specifically, Heegner's lemma provides a condition under which certain integers can be represented as sums of two squares.