Detailed Information on Publication Record
2016
Reducibility vs. definability for pseudovarieties of semigroups
MENESES GUIMARÄES DE ALMEIDA, Jorge Manuel and Ondřej KLÍMABasic information
Original name
Reducibility vs. definability for pseudovarieties of semigroups
Authors
MENESES GUIMARÄES DE ALMEIDA, Jorge Manuel (620 Portugal) and Ondřej KLÍMA (203 Czech Republic, guarantor, belonging to the institution)
Edition
International Journal of Algebra and Computation, 2016, 0218-1967
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10101 Pure mathematics
Country of publisher
Singapore
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 0.396
RIV identification code
RIV/00216224:14310/16:00088364
Organization unit
Faculty of Science
UT WoS
000388649200010
Keywords in English
Pseudovariety; relatively free profinite semigroup; ordered semigroup; completely regular semigroup; commutative semigroup; group
Tags
International impact, Reviewed
Změněno: 10/4/2017 22:11, Ing. Andrea Mikešková
Abstract
V originále
It is easy to show that a pseudovariety which is reducible with respect to an implicit signature sigma for the equation x=y can also be defined by sigma-identities. We present several negative examples for the converse using signatures in which the pseudovarieties are usually defined. An ordered example issue from the extended Straubing–Thérien hierarchy of regular languages is also shown to provide a positive example.
Links
| GA15-02862S, research and development project |
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