[3J Fennemore C. F. : [4J Howie ,1.M. •

- 49 -

BIBLIOGRAFIA

[n _{l _} Clifford-Preston : The algeb~~e Theo~y 06 Òenl~~oupÒ. American Mathematical Society (1961)

[2J Fennemore C.F.

[3J Fennemore C. F. : [4J Howie ,1.M. ^•

[5J Kimura ^{N. :}

[6J Kimura ^{N• :} f7

^l _{J ~1c} Lean D.

-8 ¹ Petric M.:

l ^J

Alt _v~etieò Q6 bandò (I). _~~th. Nachr. 48(1971), 237-252.

Alt _va/u~tieò 06 bandò (II). Math. Nachr. 48(1971),252-262.

An _~odue.tion to òem~~oupò Theo~y. Academic Press (1976).

Note on idempotent _òemig~oupò (I) Proc. Japan Acad. 33 (1957)

The _ò~uetMe 06 idempotent òem<.g~oupò (I) Pac i fi c J. Ma th.

8 (1958)

Idempotent òemig~oupò, Amer. Math. Monthly (1954)

A eonò~uetion and a c~aòòi6ieat;.on 06 _band~ Math. Nachr.

48 (1971), 263-274.

~J Yamada M-Kimura N.: Note on idempotent òemigkoupò (II), Proc. Japan Acad.

34 (1958).

110j Benzaken C.-Mayr H.C: Notion de demi-bande:demi-baI1deò de .type deux. Semi- group form 10(1975)

111 i Howi e J. M. : _s~ te demi-g~oup~ engen~~ pak deò idempoteY!~. Lect Notes in Mathematics (1977).

1121 Piochi B.: Suita deeompoòizione dJ. Szép dei M.migrillppi _gel1~ati

da idempotentt. 1st. Mat.Univ. Siena, R.38 (1981).

1131 ~ligliorini F.-Szép J.: On r-deeompoòition 06 òemigkoupò. Ist.Mat.Univ.Siena, R.45 (1981).

! 141 Szép J.: On the _ò~uetMe 06 Mnite _umig~oupò I II. Dep t. _~la th.

K.Marx Univo Econom. - Budapest (1973) NR. 3,29P.