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Turkish Journal of Mathematics

DOI

10.3906/mat-1309-60

Abstract

The index and the period of an element a of a finite semigroup are defined as the smallest values of m \geq 1 and r \geq 1 such that a^{m+r}=a^m, respectively. If m=1 then a is called an element of index 1. The aim of this paper is to find some properties of the elements of index 1 in T_n, which we call transformations of index 1.

First Page

419

Last Page

425

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