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CORR
2011
Springer
141views Education» more  CORR 2011»
12 years 11 months ago
Geometric Semigroup Theory
Geometric semigroup theory is the systematic investigation of finitely-generated semigroups using the topology and geometry of their associated automata. In this article we show h...
Jon McCammond, John Rhodes, Benjamin Steinberg
IJAC
2006
52views more  IJAC 2006»
13 years 4 months ago
Self-similar Inverse Semigroups and Smale Spaces
Self-similar inverse semigroups are defined using automata theory. Adjacency semigroups of s-resolved Markov partitions of Smale spaces are introduced. It is proved that a Smale s...
Volodymyr Nekrashevych
IGPL
2011
12 years 11 months ago
On representable ordered residuated semigroups
We show that the equational theory of representable lattice-ordered residuated semigroups is not finitely axiomatizable. We apply this result to the problem of completeness of su...
Szabolcs Mikulás
CORR
2011
Springer
170views Education» more  CORR 2011»
12 years 11 months ago
Exact observability, square functions and spectral theory
Abstract. In the first part of this article we introduce the notion of a backwardforward conditioning (BFC) system that generalises the notion of zero-class admissibiliy introduce...
Bernhard Hermann Haak, El-Maati Ouhabaz
IJAC
2006
67views more  IJAC 2006»
13 years 4 months ago
Conjugacy Invariants of Subshifts: an Approach from Profinite Semigroup Theory
: It is given a structural conjugacy invariant in the set of pseudowords whose finite factors are factors of a given subshift. Some profinite semigroup tools are developed for this...
Alfredo Costa