The cancellation of an infinite cyclic group in direct products

On hopfian groups

R. Hirshon · Pacific Journal of Mathematics · 1970 · 40 citations · Full text

On Cancellation in Groups

R. Hirshon · American Mathematical Monthly · 1969 · 26 citations

Natural Sciences, Mathematics, Algebra +3

Some theorems on hopficity

R. Hirshon · Transactions of the American Mathematical Society · 1969 · 22 citations · Full text

Natural Sciences, Mathematics, Physics +4

Some new groups admitting essentially unique directly indecomposable decompositions

R. Hirshon · Mathematische Annalen · 1971 · 12 citations

Architecture, Architectural Representation, Representation Theory +6

A Problem in Group Theory

R. Hirshon · American Mathematical Monthly · 1972 · 12 citations

Natural Sciences, Mathematics, Group Dynamics +10