..............page:161-175
..............page:176-184
..............page:185-189
On Unitary k-perfect Numbers
TANG Min;YANG Quanhui;School of Mathematics and Computer Science;Anhui Normal University;School of Mathematics and Statistics;Nanjing University of Information Science and Technology;
..............page:190-194
Radicals of Morita Context Rings
WANG Yao;REN Yanli;School of Mathematics and Statistics;Nanjing University of Information Science and Technology;School of Mathematics and Information Technology;Nanjing Xiaozhuang University;
..............page:195-205
..............page:206-210
..............page:211-220
..............page:221-232
..............page:233-251
..............page:252-262
..............page:263-270
..............page:271-279
..............page:280-288
..............page:289-298
..............page:299-308
..............page:309-319