Helmut Länger

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Main results of Dorninger and Länger (J Pure Appl Math 40:441–449, 2007) concerning polynomial permutations on bounded lattices with an antitone involu-tion are generalized to the case of bounded commutative directoids. Polynomial involutions are important in cryptography. Namely, if A ¼ ðA; FÞ is an algebra having a binary term operation ? such that the(More)
The probability p(s) of the occurrence of an event pertaining to a physical system which is observed in different states s determines a function p from the set S of states of the system to [0, 1]. The function p is called a numerical event or multidimensional probability. When appropriately structured, sets P of numerical events form so-called algebras of(More)
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