Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleCharacteristic and IA-Invariant Radicals.AuthorsSamadi, Mohammad; Shahryari, MohammadAbstractIn this article, we study systems of coefficient-free equations over special classes of groups, their radicals in which are characteristic or IA-invariant subgroups of the free group.SubjectsRADICAL theory; ALGEBRAIC geometry; FREE groupsPublicationBulletin of the Iranian Mathematical Society, 2021, Vol 47, Issue 2, p341ISSN1018-6301Publication typeArticleDOI10.1007/s41980-020-00386-6