Factor frequencies in generalized Thue-Morse words

Ľubomíra Balková

Displaying similar documents to “Factor frequencies in generalized Thue-Morse words”

Equivalence of compositional expressions and independence relations in compositional models

Francesco M. Malvestuto (2014)

Kybernetika

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We generalize Jiroušek’s (right) composition operator in such a way that it can be applied to distribution functions with values in a “semifield“, and introduce (parenthesized) compositional expressions, which in some sense generalize Jiroušek’s “generating sequences” of compositional models. We say that two compositional expressions are equivalent if their evaluations always produce the same results whenever they are defined. Our first result is that a set system $ℋ$ is star-like with...

On an algorithm for testing T4 solvability of max-plus interval systems

Helena Myšková (2012)

Kybernetika

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In this paper, we shall deal with the solvability of interval systems of linear equations in max-plus algebra. Max-plus algebra is an algebraic structure in which classical addition and multiplication are replaced by $\oplus$ and $\otimes$ , where $a \oplus b = max {a, b}$ , $a \otimes b = a + b$ . The notation $𝔸 \otimes x = 𝕓$ represents an interval system of linear equations, where $𝔸 = [\bar{b}, \bar{A}]$ and $𝕓 = [\underset{̲}{b}, \bar{b}]$ are given interval matrix and interval vector, respectively. We can define several types of solvability of interval systems. In this paper, we define the T4 solvability and...