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  • Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi
  • Volume:22 Issue:2
  • Certain ranks of some ideals in symmetric inverse semigroups contains S_n or A_n

Certain ranks of some ideals in symmetric inverse semigroups contains S_n or A_n

Authors : Leyla BUGAY
Pages : 669-678
Doi:10.25092/baunfbed.745821
View : 13 | Download : 13
Publication Date : 2020-04-10
Article Type : Research Paper
Abstract :n≥2 için I_n, S_n ve A_n, sırasıyla, X_n={1,…,n} üzerindeki simetrik inverse yarıgrup, simetrik grup ve alterne grup olsun. Ayrıca, 1≤r≤n-1 için I_(n,r), yüksekliği en fazla r olan tüm kısmi bire-bir dönüşümlerden oluşan altyarıgrup, SI_(n,r)=I_(n,r)∪S_n ve AI_(n,r)=I_(n,r)∪A_n olsun. Karesi idempotent olan fakat kendisi idempotent olmayan bir elemana quasi-idempotent denir. Bu calışmada SI_(n,r) (AI_(n,r)) nin rankını elde ettik. Ayrıca, modulo S_n e göre SI_(n,r) nin (modulo A_n e göre AI_(n,r) nin) ilişkili rankını ve quasi-ilişkili rankını elde ettik.
Keywords : Simetrik inverse yarıgrup, quasi idempotent, rank

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