Abdullahi Umar

1. Combinatorial results for semigroups of order-preserving partial transformations
   2004/01/27 by A Laradji, A. Laradji, A Umar +1 · 4 citations
   Computer Science · Biochemistry, Genetics and Molecular Biology · Mathematics · #semigroups and automata theory #Chemical Synthesis and Analysis #Geometric and Algebraic Topology
2. On the semigroup of partial isometries of a finite chain
   2010/12/30 by Rotimi Kehinde, Kehinde, Rotimi, Abdullahi Umar +1 · 1 citation
   Computer Science · Mathematics · #20M #Advanced Algebra and Logic #Advanced Combinatorial Mathematics #FOS: Mathematics #Group Theory (math.GR) #math.GR #msc:20M #semigroups and automata theory
3. On the Construction of Even Order Magic Squares
   2012/02/05 by Abdullahi Umar, Umar, Abdullahi · 1 citation
   Computer Science · Mathematics · #Graph Labeling and Dimension Problems #Mathematics Education and Pedagogy #math.CO #msc:05B15