Turán problem on the union of three intervals of equal length

Xiao-Ye Fu, Yue-Kun Li, Wei-Jie Wang +1

This paper addresses the Turán extremal problem on the symmetric three-interval set ${\Omega }_{\lambda }=(-1,1)\cup (\lambda -1,\lambda +1)\cup (-\lambda -1,-\lambda +1)$, $\lambda \ge 0$. We establish a discrete approximation…