Problem 11166. - Greg Oman (Am. Math. Mon., 2005)

Problem 11284. - Greg Oman (Am. Math. Mon., 2007)

Isomorphic Rings of Functions: 11166. - Greg Oman; Michael W. Botsko (Am. Math. Mon., 2007)

Problem 11451. - Greg Oman (Am. Math. Mon., 2009)

Rings That are Fields: 11284 [2007, 358]. - Greg Oman; Manuel Reyes (Am. Math. Mon., 2009)

On the axiom of union. - Greg Oman (Arch. Math. Log., 2010)

Jónsson and HS Modules over Commutative Rings. - Greg Oman (Int. J. Math. Math. Sci., 2014)

The theory of integrally closed domains is not finitely axiomatizable. - Greg Oman (Math. Log. Q., 2015)

Unifying some notions of infinity in ZC and ZF. - Greg Oman (Reports Math. Log., 2016)