Results 21 to 30 of about 187 (71)

Some results on ordered filters of implicative semigroups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 26, Issue 12, Page 731-735, 2001., 2001
We introduce a special set in an implicative semigroup. Using it, an equivalent condition of an ordered filter is stated. We prove that an ordered filter can be represented by the union of such sets.
Young Bae Jun
wiley   +1 more source

On ideals of implicative semigroups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 27, Issue 2, Page 77-82, 2001., 2001
We introduce the notion of ideals in implicative semigroups, and then state the characterizations of the ideals.
Young Bae Jun, Kyung Ho Kim
wiley   +1 more source

A NOTE ON PSEUDO SYMMETRIC IDEALS OF PARTIALLY ORDERED TERNARY SEMIGROUPS [PDF]

open access: yes, 2023
In this article, we study some interesting properties of pseudo symmetric ideals and prime pseudo symmetric ideals in partially ordered ternary ...
Dattatray Shinde, Machchhindra Gophane
core   +1 more source

On fuzzy points in semigroups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 26, Issue 11, Page 707-712, 2001., 2001
We consider the semigroup S¯ of the fuzzy points of a semigroup S, and discuss the relation between the fuzzy interior ideals and the subsets of S¯ in an (intra‐regular) semigroup S.
Kyung Ho Kim
wiley   +1 more source

Intuitionistic fuzzy interior ideals of semigroups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 27, Issue 5, Page 261-267, 2001., 2001
We consider the intuitionistic fuzzification of the concept of interior ideals in a semigroup S, and investigate some properties of such ideals. For any homomorphism f from a semigroup S to a semigroup T, if B = (μB, γB) is an intuitionistic fuzzy interior ideal of T, then the preimage f−1(B) = (f−1(μB), f−1(γB)) of B under f is an intuitionistic fuzzy
Kyung Ho Kim, Young Bae Jun
wiley   +1 more source

Positive implicative ordered filters of implicative semigroups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 23, Issue 12, Page 801-806, 2000., 2000
We introduce the notion of positive implicative ordered filters in implicative semigroups. We show that every positive implicative ordered filter is both an ordered filter and an implicative ordered filter. We give examples that an ordered filter (an implicative ordered filter) may not be a positive implicative ordered filter.
Young Bae Jun, Kyung Ho Kim
wiley   +1 more source

A further study on ordered regular equivalence relations in ordered semihypergroups

open access: yesOpen Mathematics, 2018
In this paper, we study the ordered regular equivalence relations on ordered semihypergroups in detail. To begin with, we introduce the concept of weak pseudoorders on an ordered semihypergroup, and investigate several related properties.
Tang Jian   +3 more
doaj   +1 more source

Semigroup Closures of Finite Rank Symmetric Inverse Semigroups

open access: yes, 2008
We introduce the notion of semigroup with a tight ideal series and investigate their closures in semitopological semigroups, particularly inverse semigroups with continuous inversion.
A. Abd-Allah   +35 more
core   +1 more source

Reducing data processing effort in camera trap density estimation: Extending the REST model by explicitly modelling animal detection processes

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 3, Page 850-862, March 2026.
Abstract Accurate and reliable estimation of wildlife population density is fundamental to effective conservation and management. While camera traps show potential for monitoring ground‐dwelling mammal densities, labour‐intensive data processing remains a significant constraint. Ideally, conservation efforts would benefit from the continuous monitoring
Yoshihiro Nakashima   +2 more
wiley   +1 more source

On ideals of affine semigroups and affine semigroups with maximal embedding dimension

open access: yesOpen Mathematics
Let S⊆NpS\subseteq {{\mathbb{N}}}^{p} be a semigroup, any P⊆SP\subseteq S is an ideal of SS if P+S⊆PP+S\subseteq P, and an I(S)I\left(S)-semigroup is the affine semigroup P∪{0}P\cup \left\{0\right\}, with PP an ideal of SS. We characterise the I(S)I\left(
García-García J. I.   +2 more
doaj   +1 more source

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