20 Group theory and generalizations
 
20M18 Inverse semigroups (6 articles) 
- 
Sieben, Nándor:
		Cayley color graphs of inverse semigroups and groupoids.
		
			(English).
Czechoslovak Mathematical Journal,
		vol. 58
			(2008),
			issue 3,
		pp. 683-692
- 
Banakh, Taras; Hryniv, Olena:
		Embedding topological semigroups into the hyperspaces over topological groups.
		
			(English).
Acta Universitatis Carolinae. Mathematica et Physica,
		vol. 48
			(2007),
			issue 2,
		pp. 3-18
- 
Konieczny, Janusz:
		Regular, inverse, and completely regular centralizers of permutations.
		
			(English).
Mathematica Bohemica,
		vol. 128
			(2003),
			issue 2,
		pp. 179-186
- 
Kuřil, Martin:
		A multiplication of e-varieties of regular $E$-solid semigroups by inverse semigroup varieties.
		
			(English).
Archivum Mathematicum,
		vol. 33
			(1997),
			issue 3,
		pp. 279-299
- 
Lai, C. K.; Shum, K. P.:
		A note in inverse and dual semigroups.
		
			(English).
Czechoslovak Mathematical Journal,
		vol. 42
			(1992),
			issue 1,
		pp. 7-10
- 
Schein, Boris M.:
		Generalized Groups with the Well-Ordered Set of Idempotents.
		
			(English).
Matematicko-fyzikálny časopis,
		vol. 14
			(1964),
			issue 4,
		pp. 259-262