Editing Inverse element (section)

==References==
* M. Kilp, U. Knauer, A.V. Mikhalev, ''Monoids, Acts and Categories with Applications to Wreath Products and Graphs'', De Gruyter Expositions in Mathematics vol. 29, Walter de Gruyter, 2000, {{ISBN|3-11-015248-7}}, p.&nbsp;15 (def in unital magma) and p.&nbsp;33 (def in semigroup)
*{{cite book|last= Howie|first= John M.|title=Fundamentals of Semigroup Theory|year=1995|publisher=[[Clarendon Press]]|isbn=0-19-851194-9}} contains all of the semigroup material herein except *-regular semigroups.
* Drazin, M.P., ''Regular semigroups with involution'', Proc. Symp. on Regular Semigroups (DeKalb, 1979), 29–46
* Miyuki Yamada, ''P-systems in regular semigroups'', [[Semigroup Forum]], 24(1), December 1982, pp.&nbsp;173–187
*Nordahl, T.E., and H.E. Scheiblich, Regular * Semigroups, [[Semigroup Forum]], 16(1978), 369–377.

[[Category:Algebra]]
[[Category:Abstract algebra]]
[[Category:Binary operations|*Inverse element]]