Document Type : Research Paper
Authors
1 State Key Laboratory, Breeding Base of Nuclear Resources and Environment, East China Institute of Technology, Nanchang, 330013, China
2 Department of Mathematics Education (and RINS), Gyeongsang Na- tional University, Chinju 660-701, Korea
3 School of Mathematics and Information Sciences, East China Institute of Technology, Fuzhou, Jiangxi 344000, China
Abstract
This paper consider the general forms of $(alpha,beta)$-fuzzy
left ideals (right ideals, bi-ideals, interior ideals) of an ordered
semigroup, where
$alpha,betain{in_{gamma},q_{delta},in_{gamma}wedge
q_{delta}, in_{gamma}vee q_{delta}}$ and $alphaneq
in_{gamma}wedge q_{delta}$. Special attention is paid to
$(in_{gamma},ivq)$-left ideals (right ideals, bi-ideals, interior
ideals) and some related properties are investigated. The
characterization of regular ordered semigroups in terms of
$(in_{gamma},ivq)$-fuzzy left (right) ideals,
$(in_{gamma},ivq)$-fuzzy bi-ideals and
$(in_{gamma},ivq)$-fuzzy interior ideals is also investigated.
Keywords
subgroup}, Fuzzy Sets and Systems, textbf{51} (1992), 235-241.
bibitem{Bhakat1996} S. K. Bhakat and P. Das, {it $(in,invee q)$-fuzzy
subgroups}, Fuzzy Sets and Systems, textbf{80} (1996), 359-368.
bibitem{Bhakat2000} S. K. Bhakat, {it$(in,invee q)$-fuzzy normal,
quasinormal and maximal subgroups}, Fuzzy Sets and Systems, textbf{112}
(2000), 299-312.
Fuzzy Sets and Systems, textbf{103} (1999), 529-533.
ordered groupoids}, Semigroup Forum, textbf{65} (2002), 128-132.
semigroups}, Lobachevskii J. Math., textbf{21} (2006), 65-71.
Information Sciences, textbf{171} (2005), 13-28.
fuzzy subset}, Information Sciences, textbf{176} (2006), 3675-3693.
fuzzy sets}, Lobachevskii J. Math., textbf{29} (2008), 14-20.
by their intuitionistic fuzzy bi-ideals}, Iranian Journal of Fuzzy
Systems, textbf{7} (2010 ), 55-69.
semigroups}, Lobachevskii J. Math., textbf{30} (2009), 30-39.
fuzzy point and Moore¨CSmith convergence}, J. Math. Anal. Appl.,
textbf{76} (1980), 571-599.
semigroups}, Iranian Journal of Fuzzy
Systems, textbf{7} (2010 ), 115-128.
(2008), 237-250.
fuzzy ideals}, Comput. Math. Appl., textbf{59} (2010), 539-549.
in terms of fuzzy subsets}, Iranian Journal of Fuzzy
Systems, textbf{7} (2010),
121-140.
textbf{24} (2008), 41-52.