The Complete Intersection Theorem for Systems of Finite Sets

@article{Ahlswede1997TheCI,
title={The Complete Intersection Theorem for Systems of Finite Sets},
author={Rudolf Ahlswede and Levon H. Khachatrian},
journal={Eur. J. Comb.},
year={1997},
volume={18},
pages={125-136}
}

We are concerned here with one of the oldest problems in combinatorial extremal theory. It is readily described after we have made a few conventions. ގ denotes the set of