New topologies between the usual and Niemytzki Dina Abuzaid | Maha Alqahtani | Lutfi Kalantan | Show more Dina Abuzaid Saudi Arabia King Abdulaziz University Department of Mathematics Maha Alqahtani Saudi Arabia Kinq Khalid University Department of Mathematics Lutfi Kalantan Saudi Arabia King Abdulaziz University Department of Mathematics Submitted: 2019-07-03 | Accepted: 2019-10-28 | Published: 2020-04-03 DOI: https://doi.org/10.4995/agt.2020.12042