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机译:Maximal Subrings and Covering Numbers of Finite Semisimple Rings
Univ Padua, Dept Math, Padua, Italy;
SUNY Coll Old Westbury, Dept Math Comp & Informat Sci, Old Westbury, NY 11568 USA;
Covering number; finite field; matrix ring; maximal subring; semisimple ring;