113 Прикладна математика
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Browsing 113 Прикладна математика by Subject "left-distributivity"
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Item Binary relations between binary operations(2021) Bilyi, Illia; Козеренко, СергійLet Bin(X) be a collection of all groupoids on some non-empty set X. De ne the operation : Bin2(X) ! Bin(X) so that x( )y = (x y) (y x) for all x; y 2 X and (X; ); (X; ) 2 Bin(X). Let lz denote left-zero operation (8x; y 2 X : x lz y = x) on X. Then, (X; lz) is an identity of (Bin(X); ). Similarly, de ne right-zero rz 2 Bin(X) (8x; y 2 X : x rz y = y). We consider the center of (Bin(X); ) and represent its elements as graphs. Furthermore, we investigate distributivity from the left in Bin(X) and its interaction with -product. We show that the only operation that is left- distributive over all possible 2 Bin(X) is rz 2 Bin(X) and that any 2 Bin(X) is left-distributive over lz; rz 2 Bin(X).Item Left-distributivity relation on the semigroup Bin(X)(2022) Krolevets, Mariia; Kozerenko, SerhiyLet X be a nonempty set. Bin(X) is the collection of all groupoids defined on X. Let ; 2 Bin(X). We define a binary operation on Bin(X) as follows: 8x; y 2 X : x[ ]y = (x y) (y x): In fact, (Bin(X); ) is a monoid with left-zero operation lz being its identity, where 8x; y 2 X : x lz y = x. ZBin(X) is the set of all elemets of Bin(X) that commute with every other elements under . In this thesis, we study the left-distributivity relation on the semigroup Bin(X) and the group ZBin(X).We research the question of trivial left-distributivity neighborhoods in Bin(X). Furthermore, we give a criterion, which characterizes those elements of ZBin(X), which the given element distributes from the left with.