Abdullahi Umar
Identifiers
- name variant Abdullahi Umar 0.60 · backfill
Papers (5)
- Presentations for subsemigroups of $PD_n$ math.GR · 2017 · author #1
- A countable family of finitely presented infinite congruence-free monoids math.GR · 2013 · author #3
- $\mathcal{J}^{\ast}=\mathcal{D}^{\ast}$ need not hold in finite semigroups math.GR · 2013 · author #3
- On the Construction of Even Order Magic Squares math.CO · 2012 · author #1
- On the semigroup of partial isometries of a finite chain math.GR · 2010 · author #2
Mentions
Frequent Coauthors
- Victor Maltcev 2 shared papers
- Alan J. Cain 1 shared papers
- Andreas Distler 1 shared papers
- Rotimi Kehinde 1 shared papers