How many variables are needed to express an existential positive query?

Bova, Simone; Chen, Hubie

by Simone Bova, Hubie Chen

Reference:

How many variables are needed to express an existential positive query?Simone Bova, Hubie ChenProceeding of the Twentieth International Conference on Database Theory (ICDT), March 21-24, 2017, Venice, Italy, 2017.Note: Best Paper Award

Bibtex Entry:

@inproceedings{BovaChen17,
  author    = {Simone Bova and
               Hubie Chen},
  title     = {How many variables are needed to express an existential positive query?},
  booktitle = {Proceeding of the Twentieth International Conference on Database Theory (ICDT), 
March 21-24, 2017, Venice, Italy},
  year      = {2017},
note ={<strong>Best Paper Award} 
}