Browsing by Author "Izbas, Vladimir"

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    About AC-Groupoids [Articol]
    (2024) Izbas, Vladimir; Izbas, Ana-Maria
    The concept of a right (left) AC-groupoid over an arbitrary group is defined and studied. Necessary and sufficient conditions which transform a right (left) AC-groupoid into a quasigroup are given. The AC-groupoids form a wide class of special groupoids and quasigroups that have a transitive subset of automorphisms.
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    DERIVATION OF BOOLEAN FUNCTIONS BY THE BLOCKS METHOD
    (Valines SRL, 2014) Bulat, Mihai; Cataranciuc, Sergiu; Ciobanu, Iacob; Izbas, Vladimir; Zgureanu, Aureliu
    A method for calculating using blocks of the partial derivatives of the boolean function which are represented in algebraic form { a polynomial form, disjunctive normal form and conjunctive normal form is proposed. The method can be used success- fully for functions which depend on a large number of variables (tens and hundreds). This method can be applied to solve many problems from di®erent areas such as: elaborating of encryption system with variable keys, some problems from discrete mathematics (systems isomorphism problem, problem of determining of chromatic number in graphs ect.).