Results 131 to 140 of about 4,265 (160)
Tunicates have a complex, highly dynamic TNF superfamily. [PDF]
PLoS OneMarín I.
europepmc +1 more source
Basis reduction for cryptogroups and orthogroups [PDF]
Semigroup Forum, 2020 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
A C Casimiro, Eduardo Skapinakis
exaly +3 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Science in China Series A: Mathematics, 2006
A regular semigroup \(S\) satisfying the condition \(eS\subseteq Se\) or \(Se\subseteq eS\) for every idempotent \(e\) is a completely regular orthodox semigroup and is called an \(LR\)-regular orthogroup. \(S\) is called an \(LR\)-normal orthogroup if in addition its set \(E(S)\) of all idempotens forms a normal band, that is, \(efge=egfe\) for all ...
M K Sen, Sen M K, K P Shum
exaly +3 more sources
A regular semigroup \(S\) satisfying the condition \(eS\subseteq Se\) or \(Se\subseteq eS\) for every idempotent \(e\) is a completely regular orthodox semigroup and is called an \(LR\)-regular orthogroup. \(S\) is called an \(LR\)-normal orthogroup if in addition its set \(E(S)\) of all idempotens forms a normal band, that is, \(efge=egfe\) for all ...
M K Sen, Sen M K, K P Shum
exaly +3 more sources
Communications in Algebra, 2001
A simple and nice structure theorem for orthogroups was given by Petrich in 1987. In this paper, we consider a generalized orthogroup, that is, a quasi-completely regular semigroup with a band of idempotents in which its set of regular elements, namely, RegS, forms an ideal of S.
X M Ren, K P Shum
exaly +2 more sources
A simple and nice structure theorem for orthogroups was given by Petrich in 1987. In this paper, we consider a generalized orthogroup, that is, a quasi-completely regular semigroup with a band of idempotents in which its set of regular elements, namely, RegS, forms an ideal of S.
X M Ren, K P Shum
exaly +2 more sources
Maximal Normal Orthogroups in Rings Containing No Infinite Semilattices
Communications in Algebra, 2006ABSTRACT Let R be a ring regarded as a multiplicative semigroup which contains no infinite subsemilattices. We investigate subsemigroups of R which are normal orthogroups, and present a construction from which all such maximal normal orthogroups can be obtained.
Edmond W H Lee
exaly +3 more sources
Bi-ideals in regular semigroups and in orthogroups
Acta Mathematica Hungarica, 1986The author investigates regular semigroups by means of their bi-ideals. A bi-ideal of a semigroup S is a subsemigroup \(B\subseteq S\) with BSB\(\subseteq B\); the bi-ideals of S form a semigroup \({\mathfrak B}(S)\) under complex multiplication. The following two 'reduction theorems' are proven for \({\mathfrak B}(S):\) 1.
Maria Maddalena Miccoli
exaly +3 more sources
Orthogroups with an associate subgroup
Acta Mathematica Hungarica, 2009An orthogroup is defined as a semigroup 1) which is a union of its subgroups and 2) its idempotents form a subsemigroup. A subgroup of a semigroup \(S\) is referred to as an associate subgroup if for every element \(s\in S\) there exists exactly one element \(s^*\in G\) such that \(s=ss^*s\).
exaly +2 more sources