Find the word definition

Wikipedia
Heegner
  • Kurt Heegner was a German mathematician
  • Heegner points are special points on Elliptic curves
  • The Stark–Heegner theorem identifies the imaginary quadratic fields of class number 1.
  • A Heegner number is a number n such that Q(√−n) is an imaginary quadratic field of class number 1.