Send the following on WhatsApp
Continue to ChatPurely Rickart and Dual Purely Rickart Objects in Grothendieck Categories - https://avesis.hacettepe.edu.tr/publication/details/266a3d16-545e-4151-a2ae-02f7c84ce6cb/purely-rickart-and-dual-purely-rickart-objects-in-grothendieck-categories