@Article{ 
  KovPin20,
  author = { Kovarik, Hynek and Pinchover, Yehuda },
  title = { On minimal decay at infinity of Hardy-weights },
  journal = { Comm. Cont. Mathematics },
  year = { 2020 },
  doi = { 10.1142/S0219199719500469 },
  volume = { 22 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/5091/ },
  note = { cvgmt preprint}
}