2 papers
math.RA2026
On the semigroups of fence-decreasing and fence-preserving transformations on a finite fence
Gonca Ayık, Hayrullah Ayık, Ilinka Dimitrova +1
For a natural number , a fence is a partial ordered set. A partial transformation is called fence-decreasing if $xα\pre…
math.RA2025
On certain subsemigroups of finite oriented and order-decreasing full transformations
Gonca Ayık, Hayrullah Ayık, Ilinka Dimitrova +1
Let be the semigroup consisting of all oriented and order-decreasing full transformations on the finite chain , and for $1\leq r\leq n-1…