R. Kehinde

activity

20102017

collaborators

3 papers

math.GR2017

Combinatorial results for certain semigroups of order-decreasing partial isometries of a finite chain

F. Al-Kharousi, R. Kehinde, A. Umar

Let $I_{n}$ be the symmetric inverse semigroup on $X_{n} = {1, 2, \dots, n}$ and let $DDP_{n}$ and $O DDP_{n}$ be its subsemigroups of order-decreasing partial isom…

math.GR2011

On the semigroup of order-decreasing partial isometries of a finite chain

R. Kehinde, S. O. Makanjuola, A. Umar

Let $I_{n}$ be the symmetric inverse semigroup on $X_{n} = {1, 2, ..., n}$ and let $DDP_{n}$ and $O DDP_{n}$ be its subsemigroups of order-decreasing partial isometrie…

math.GR2010

On the semigroup of partial isometries of a finite chain

Rotimi Kehinde, Abdullahi Umar

Let $I_{n}$ be the symmetric inverse semigroup on $X_{n} = {1, 2, ..., n}$ and let $DP_{n}$ and $O DP_{n}$ be its subsemigroups of partial isometries and of order-pres…