Title:
|
On ideal extensions of partial monounary algebras (English) |
Author:
|
Jakubíková-Studenovská, Danica |
Language:
|
English |
Journal:
|
Czechoslovak Mathematical Journal |
ISSN:
|
0011-4642 (print) |
ISSN:
|
1572-9141 (online) |
Volume:
|
58 |
Issue:
|
2 |
Year:
|
2008 |
Pages:
|
331-344 |
Summary lang:
|
English |
. |
Category:
|
math |
. |
Summary:
|
In the present paper we introduce the notion of an ideal of a partial monounary algebra. Further, for an ideal $(I,f_I)$ of a partial monounary algebra $(A,f_A)$ we define the quotient partial monounary algebra $(A,f_A)/(I,f_I)$. Let $(X,f_X)$, $(Y,f_Y)$ be partial monounary algebras. We describe all partial monounary algebras $(P,f_P)$ such that $(X,f_X)$ is an ideal of $(P,f_P)$ and $(P,f_P)/(X,f_X)$ is isomorphic to $(Y,f_Y)$. (English) |
Keyword:
|
partial monounary algebra |
Keyword:
|
ideal |
Keyword:
|
congruence |
Keyword:
|
quotient algebra |
Keyword:
|
ideal extension |
MSC:
|
08A55 |
MSC:
|
08A60 |
idZBL:
|
Zbl 1174.08300 |
idMR:
|
MR2411093 |
. |
Date available:
|
2009-09-24T11:55:08Z |
Last updated:
|
2020-07-03 |
Stable URL:
|
http://hdl.handle.net/10338.dmlcz/128261 |
. |
Reference:
|
[1] A. H. Clifford: Extensions of semigroups.Trans. Am. Math. Soc. 68 (1950), 165–173. Zbl 0037.01001, MR 0033836, 10.1090/S0002-9947-1950-0033836-2 |
Reference:
|
[2] A J. Hulin: Extensions of ordered semigroups.Czech. Math. J. 26(101) (1976), 1–12. Zbl 0339.06010, MR 0392740 |
Reference:
|
[3] D. Jakubíková-Studenovská: Subalgebra extensions of partial monounary algebras.Czech. Math. J. 56(131) (2006), 845–855. MR 2261657, 10.1007/s10587-006-0060-2 |
Reference:
|
[4] B. Jónsson: Topics in Universal Algebra.Springer, Berlin-Heidelberg-New York, 1972. MR 0345895 |
Reference:
|
[5] N. Kehayopulu, P. Kiriakuli: The ideal extension of lattices.Simon Stevin 64 (1990), 51–60. MR 1072483 |
Reference:
|
[6] N. Kehayopulu, M. Tsingelis: The ideal extensions of ordered semigroups.Commun. Algebra 31 (2003), 4939–4969. MR 1998037, 10.1081/AGB-120023141 |
Reference:
|
[7] J. Martinez: Torsion theory of lattice ordered groups.Czech. Math. J. 25(100) (1975), 284–299. MR 0389705 |
Reference:
|
[8] M. Novotný: Mono-unary algebras in the work of Czechoslovak mathematicians.Arch. Math., Brno 26 (1990), 155–164. MR 1188275 |
. |