Editing Cyclotomic polynomial (section)

===Sister Beiter conjecture===

The [[Sister Beiter conjecture]] is concerned with the maximal size (in absolute value) <math>A(pqr)</math> of coefficients of ''ternary cyclotomic polynomials'' <math>\Phi_{pqr}(x)</math> where <math>p\leq q\leq r</math> are three odd primes.<ref name=beiter68>{{citation|last=Beiter|first=Marion|author-link=Marion Beiter|title=Magnitude of the Coefficients of the Cyclotomic Polynomial <math>F_{pqr}(x)</math>|journal=[[The American Mathematical Monthly]]|volume=75|issue=4|date=April 1968|pages=370–372|doi=10.2307/2313416 |jstor=2313416}}</ref>