Leyla BUGAY, Melek YAĞCI

On Minimal Generating Sets of Certain Subsemigroups of Isometries

ISSN: 2147-6268
Yayın Aralığı: 4
Başlangıç: 2013
Yayıncı: -

Let $DP_{n}$ and $ODP_{n}$ be the semigroups of all isometries and of all order-preserving isometries on $X_{n}$,respectively. In this paper we investigate the structure of minimal generating sets of the subsemigroup$DP_{n,r}$= {α ∈ DPn : |im (α)| ≤ r} (similarly of the subsemigroup $ODP_{n,r}$ = {α ∈ ODPn : |im (α)| ≤ r})for 2 ≤ r ≤ n − 1. .

Keywords:

Isometry order-preserving /order-reversing map, (minimal) generating set,

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