A characterization of rational star languages generated by strong codes.
A construction of right groups from a connected groupoid.
A counter-example on *-embeddability into proper *-rings.
A new approach to orders in simple rings with minimal one-sided ideals.
A Note on Extensions of Bear and P.p.-rings
A note on locally inverse semigroup algebras.
A Note On Units And Divisors Of Zero In Group Rings
A semigroup approach to wreath-product extensions of Solomon's descent algebras.
Algèbres de demigroupes, quotients d'algebres de demigroupes finis.
An algebraic characterization of multiplicative semigroups of real valued functions.
An example of two von Neumann regular rings with nonisomorphic Monta equivalent multiplicative semigroups.
Applications of epigroups to graded ring theory.
Archimedean property of ordered semirings.