|
|
|
|
ON THE RANKS OF CERTAIN SEMIGROUPS OF ORDER-PRESERVING PARTIAL ISOMETRIES OF A FINITE CHAIN
|
|
|
|
|
|
|
|
نویسنده
|
ali b. ,jada muhammad. a ,zubairu m. m.
|
|
منبع
|
journal of algebra and related topics - 2018 - دوره : 6 - شماره : 2 - صفحه:15 -33
|
|
چکیده
|
Let xn = {1, 2, . . . , n} be a finite chain, odpn be the semigroup of order-preserving partial isometries on xn and n be the set of all nilpotents in odpn. in this work, we study the nilpotents in odpn and investigate the ranks of two subsemigroups of odpn; the nilpotent generated subsemigroup hni and the subsemigroup l(n, r) = {α ∈ odpn : |im α| ≤ r}.
|
|
کلیدواژه
|
Order-preserving partial transformations ,isometries ,height and right (left) waist ,idempotents and nilpotents
|
|
آدرس
|
nigerian defence academy, department of mathematics, Nigeria, bayero university kano, department of mathematics, Nigeria, bayero university kano, department of mathematics, Nigera
|
|
پست الکترونیکی
|
mmzubairu.mth buk.edu.ng
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Authors
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|