Results 51 to 60 of about 451,601 (187)

Central sets and substitutive dynamical systems [PDF]

open access: yes, 2013
In this paper we establish a new connection between central sets and the strong coincidence conjecture for fixed points of irreducible primitive substitutions of Pisot type.
Luca, Marcy Barge, Q. Zamboni
core   +3 more sources

Graph Logics with Rational Relations [PDF]

open access: yesLogical Methods in Computer Science, 2013
We investigate some basic questions about the interaction of regular and rational relations on words. The primary motivation comes from the study of logics for querying graph topology, which have recently found numerous applications.
Pablo Barcelo   +2 more
doaj   +1 more source

Combinatorial Properties of primitive words with Non-primitive Product

open access: yes, 2022
15 ...
Echi, Othman   +2 more
openaire   +2 more sources

Ins-Robust Primitive Words

open access: yes, 2017
12 ...
Srivastava, Amit Kumar, Kapoor, Kalpesh
openaire   +2 more sources

Collections of parabolic orbits in homogeneous spaces, homogeneous dynamics and hyperkahler geometry

open access: yes, 2016
Let $M$ be a hyperk\"ahler manifold with $b_2(M)\geq 5$. We improve our earlier results on the Morrison-Kawamata cone conjecture by showing that the Beauville-Bogomolov square of the primitive MBM classes (i.e.
Amerik, Ekaterina, Verbitsky, Misha
core   +1 more source

$\mathcal{S}$-adic characterization of minimal dendric shifts [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science
Dendric shifts are defined by combinatorial restrictions of the extensions of the words in their languages. This family generalizes well-known families of shifts such as Sturmian shifts, Arnoux-Rauzy shifts and codings of interval exchange ...
France Gheeraert, Julien Leroy
doaj   +1 more source

Quisto hidático do mediastino. A propósito de um caso clínico

open access: yesRevista Portuguesa de Pneumologia, 2007
Resumo: A hidatidose é uma doença parasitária ciclo zoonótica, produzida pela ténia Echinococus granulosus, cuja forma larvar atinge acidentalmente o homem1,2.
Ana Paula Gonçalves   +3 more
doaj   +1 more source

Spatial Concept Acquisition for a Mobile Robot that Integrates Self-Localization and Unsupervised Word Discovery from Spoken Sentences

open access: yes, 2016
In this paper, we propose a novel unsupervised learning method for the lexical acquisition of words related to places visited by robots, from human continuous speech signals.
Inamura, Tetsunari   +2 more
core   +1 more source

d-Primitive Words and D(1)-Concatenated Words

open access: yesIEICE Transactions on Information and Systems, 2009
In this paper, we study d-primitive words and D(1)-concatenated words. First we show that neither D(1), the set of all d-primitive words, nor D(1)D(1), the set of all D(1)-concatenated words, is regular. Next we show that for u, v, w ∈ Σ+ with |u|=|w|, uvw ∈ D(1) if and only if uv+w ⊆ D(1).
Itaru KATAOKA, Tetsuo MORIYA
openaire   +2 more sources

INTRAOCULAR MALIGNANT TERATOID MEDULLOEPITHELIOMA

open access: yesJournal of Nepal Medical Association, 2003
Malignant teratoid medulloepithelioma is an uncommon unilateral intraocular tumor, occuring typically in children. This report concerns a 4-year-old boy, who presented with loss of vision, pain and proptosis of the left eye and showed mass in between ...
Ram Chandra Adhikari   +6 more
doaj   +1 more source

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