Zariski topology on the spectrum of graded classical prime submodules Ahmad Yousefian Darani | Shahram Motmaen | Show more Ahmad Yousefian Darani Iran, Islamic Republic of University of Mohaghegh Ardabil Shahram Motmaen Iran, Islamic Republic of Ardabil Branch Islamic Azad University Submitted: 2013-07-15 | Accepted: 2013-07-21 | Published: 2013-07-21 DOI: https://doi.org/10.4995/agt.2013.1586