# Characterizations of dual semigroups

Czechoslovak Mathematical Journal (1989)

- Volume: 39, Issue: 4, page 578-584
- ISSN: 0011-4642

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top## How to cite

topLai, Chi Keung, and Shum, Kar-Ping. "Characterizations of dual semigroups." Czechoslovak Mathematical Journal 39.4 (1989): 578-584. <http://eudml.org/doc/13803>.

@article{Lai1989,

author = {Lai, Chi Keung, Shum, Kar-Ping},

journal = {Czechoslovak Mathematical Journal},

keywords = {left annihilators; right ideals; left ideals; dual semigroups; nilpotent elements; 0-direct unions of Brandt semigroups},

language = {eng},

number = {4},

pages = {578-584},

publisher = {Institute of Mathematics, Academy of Sciences of the Czech Republic},

title = {Characterizations of dual semigroups},

url = {http://eudml.org/doc/13803},

volume = {39},

year = {1989},

}

TY - JOUR

AU - Lai, Chi Keung

AU - Shum, Kar-Ping

TI - Characterizations of dual semigroups

JO - Czechoslovak Mathematical Journal

PY - 1989

PB - Institute of Mathematics, Academy of Sciences of the Czech Republic

VL - 39

IS - 4

SP - 578

EP - 584

LA - eng

KW - left annihilators; right ideals; left ideals; dual semigroups; nilpotent elements; 0-direct unions of Brandt semigroups

UR - http://eudml.org/doc/13803

ER -

## References

top- A. H. Clifford G. B. Preston, The algebraic theory of semigroups II, Amer.Math. Soc., Providence, (1967). (1967) Zbl0178.01203MR0218472
- L. Márki, Structure theorems on certain regular and inverse semigroups, Czechoslovak Math. J. 27 (1977), 388-393. (1977) Zbl0381.20045MR0444816
- Št. Schwarz, On dual semigroups, Czechoslovak Math. J. 10 (1960), 201-230. (1960) Zbl0098.01602MR0117294
- Št. Schwarz, On the structure of dual semigroups, Czechoslovak Math. J. 21 (1971), 461-483. (1971) Zbl0232.20116MR0292982
- Št. Schwarz, Prime ideals and maximal ideals in semigroups, Czechoslovak Math. J. 19 (1969),72-79. (1969) Zbl0176.29503MR0237680
- Št. Schwarz, Any $0$-simple dual semigroup is completely $0$-simple, semigroup forum 2 (1971), 90-92. (1971) MR0281819
- O. Steinfeld, 10.1007/BF02194649, Semigroup Forum 14 (1977), 1-5. (1977) Zbl0393.20045MR0442123DOI10.1007/BF02194649
- O. Steinfeld, Quasi-ideals in Rings and Semigroups, Akademiai Kiado Budapest, (1978). (1978) Zbl0403.16001MR0521258

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