Small Solutions of ϕ1x12 + . . . + ϕnxn2 = 0
Zhiming M. Ou, Kenneth S. Williams · Canadian Journal of Mathematics · 2000
Abstract Let ϕ1, . . . , ϕn (n ≥ 2) be nonzero integers such that the equation is solvable in integers x1, . . . , xn not all zero. It is shown that there exists a solution satisfying and that the constant 2 is best possible.