On uniformly recurrent motions of topological semigroup actions

On the topological centers of module actions

In this paper, we  study the Arens regularity properties of module actions. We investigate some properties of topological centers of module actions ${Z}^ell_{B^{**}}(A^{**})$ and  ${Z}^ell_{A^{**}}(B^{**})$ with some conclusions in group algebras.

Topological Centers of Certain Banach Module Actions

On Uniformly Recurrent Morphic Sequences

In the paper we mainly deal with two well-known types of in nite words: morphic and uniformly recurrent (=almost periodic). We discuss the problem of nding criterion of uniform recurrence for morphic sequences and give e ective polynomial-time such criterion in two particular cases: pure morphic sequences and automatic sequences. We also prove that factor complexity of arbitrary uniformly recur...

Semigroup Actions on Intuitionistic Fuzzy Metric Spaces

The purpose of this paper is to investigate the dynamical systems in the context of topological semigroup actions in intuitionistic fuzzy 2-metric spaces. AMS Subject Classification : 46 S 40.

Cryptography based on Semigroup Actions ∗ Gérard Maze

A generalization of the original Diffie-Hellman key exchange in (Z/pZ) found a new depth when Miller [27] and Koblitz [16] suggested that such a protocol could be used with the group over an elliptic curve. In this paper, we propose a further vast generalization where abelian semigroups act on finite sets. We define a Diffie-Hellman key exchange in this setting and we illustrate how to build in...