Dear All The new volume of "Categories and General Algebraic Structures with Applications" ( CGASA) published. You can read the papers in the website: cgasa.sbu.ac.ir. Hope you and your family stay safe from Covid. Looking forward to receive your papers, Best Wishes Mojgan (Mahmoudi) and M.Mehdi (Ebrahimi) -- ************************* Mojgan Mahmoudi; Professor Department of Mathematics, Shahid Beheshti University, Tehran 19839, IRAN. Telefax: (+98)(21)(22431652) E-mail: m-mahmoudi@sbu.ac.ir, mojganmahmoudi@yahoo.com http://faculties.sbu.ac.ir/m-mahmoudi/ [For admin and other information see: http://www.mta.ca/~cat-dist/ ]