A transversal inverse o S of a regular semigrup S is called a quasi ideal transversal inverse or Q-transversal inverse if o o o S SS S where o S is the quasi ideal of S. Let S is a regular semigrup with transversal invers o S which is the quasi ideal of S. For example o o oo R xS: x x x x and eg o oo o L aS: aa a a, then R and L is an orthodox semigrup with transverse inverse o S which is ideal right of R and is the left ideal of L. Can be constructed regular semigrup with transversal inverse ideal quasi-shaped o o R L x, a R L: x a .It is connected with a band, then a regular semigrup with transverse inverse ideal quasi-shaped o o R B x, e R B: x x e
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