Browsing International Symposium „Actual problems of mathematics and informatics” dedicated to the 90th Birthday of Professor Ion Valuţă by Subject "preradicals"
Browsing International Symposium „Actual problems of mathematics and informatics” dedicated to the 90th Birthday of Professor Ion Valuţă by Subject
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Browsing International Symposium „Actual problems of mathematics and informatics” dedicated to the 90th Birthday of Professor Ion Valuţă by Subject "preradicals"
JARDAN, Ion(Technical University of Moldova, 2021)
Four new operations are introduced and studied in the class of preradicals PR in modules, namely, the inverse operations of the product and of the coproduct with respect to meet and to join.