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4th International Conference on
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September, 10-13, 2003 Turku, Finland
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Program
Tuesday, September 9
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18.00-21.00
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Registration
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Wednesday, September 10
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08.30-09.00
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Registration
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Session 1 - Chair: J. Karhumäki
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09.00
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Opening
Keijo Virtanen, Rector of the University of Turku
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09.15-10.15
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Sergei I. Adian
The Burnside problem on periodic groups and related topics
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10.15-10.45
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Coffee
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Session 2 - Chair: I. Simon
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10.45-12.45
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Anna E. Frid
Sequences of linear arithmetical complexity
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Sorin Constantinescu, Lucian Ilie
Fine and Wilf's theorem for any number of periods
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Arseny M. Shur, Yulia V. Gamzova
Periods' interaction property for partial words
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I.M. Araujo, V. Bruyere
Sturmian words and a criterium by Michaux-Villemaire
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12.45-14.00
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Lunch
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Session 3 - Chair: A. Restivo
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14.00-16.00
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Veikko Keränen
On Abelian Square-Free DT0L-Languages over 4 Letters
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David B. Penman, Christopher J. Saker
Counting Minimal n-Unavoidable Sets
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Peter Balazi
Substitution Properties of Ternary Words Coding 3-Interval
Exchange
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Tatjana Petkovic, Miroslav Ciric, Stojan Bogdanovic
Words and forbidden subwords
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16.00-16.30
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Coffee
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Session 4 - Chair: J. Neraud
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16.30-18.00
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Julien Bernat
Continued fractions and numeration in Fibonacci basis
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Ondrej Turek
Complexity and balances of the infinite word of
\beta-integers
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Jean-Luc Baril, Vincent Vajnovszki
Gray codes for p-ary Lucas strings
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19.00
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Reception of city of Turku
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Thursday, September 11
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A special day dedicated to the 60th birthday of Imre Simon
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Session 5 - Chair: J. Berstel
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09.00-09.45
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Christophe Reutenauer
Reduced words in symmetric Groups
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09.45-10.30
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Mikhail Volkov
Reflexive relations, extensive transformations and
piecewise testable languages of a given height
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10.30-11.00
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Coffee
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Session 6 - Chair: M. Volkov
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11.00-12.30
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Y. Kohayakawa, C. Mauduit, C.G. Moreira, V. Rödl
Measures of pseudorandomness for finite sequences:
minimum and typical values
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Arturo Carpi, Aldo de Luca
Harmonic and gold Sturmian words
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Pedro V. Silva
Rational subsets of partially reversible monoids
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12.30-13.45
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Lunch
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Session 7 - Chair: D. Perrin
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13.45-14.30
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Imre Simon
Words distinguished by their subwords
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16.00-19.00
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Excursion (by boat from Turku to Naantali)
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19.00
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Banquet (in Merisali at Naantali)
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Friday, September 12
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Session 8 - Chair: A. de Luca
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09.00-09.45
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James Currie
Pattern avoidance: Themes and variations
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09.45-10.15
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Narad Rampersad, Jeffrey Shallit, Ming-wei Wang
Avoiding large squares in infinite binary words
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10.15-10.45
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Coffee
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10.45-12.45
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Session 9A - Chair: T. Harju
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Session 9B - Chair: F. Mignosi
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F. Leve, G. Richomme
On a conjecture about finite fixed points of morphisms
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Janis Buls
Machine Invariant Classes
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N.E. Oussous, M. Petitot
xtaylor: un algorithme pour les polynomes non commutatifs
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Veronique Bruyere, Olivier Carton, Geraud Senizergues
Tree automata and automata on linear orderings
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Hoang Ngoc Minh
Finite polyzetas, Poly-Bernoulli numbers, identities of polyzetas
and noncommutative rational power series
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Julia Stoll
A regular characterization of context-free languages applying
an extension of Higman's theorem
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Leszek Gasieniec, Roman Kolpakov, Igor Potapov
Space efficient search for maximal repetitions
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Peter Leupold
On some properties of context-free languages related to
primitive words
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12.45-14.00
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Lunch
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Session 10 - Chair: V. Bruyere
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14.00-16.00
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Sabrina Mantaci, Antonio Restivo, Marinella Sciortino
Combinatorial aspects of the Burrows-Wheeler transform
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Maurice Margenstern
Tilings of hyperbolic spaces: the splitting method and group
theory
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M. Domaratzki, A. Mateescu, K. Salomaa, S. Yu
Deletion on trajectories and commutative closure
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Sergey Verlan, Rosalba Zizza
1-splicing vs. 2-splicing: separating results
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16.00-16.30
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Coffee
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Session 11 - Chair: J.-M. Boe
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16.30-18.00
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A. Bertoni, P. Massazza, R. Radicioni
Random generation of words with fixed occurrences of symbols in
regular languages
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Diego de Falco, Massimiliano Goldwurm, Violetta Lonati
Pattern statistic in bicomponent stochastic models
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Denis Debarbieux, Yves Roos, Sophie Tison, Yves Andre,
Anne-Cecile Caron
Path rewriting in semistructured data
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Saturday, September 13
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Session 12 - Chair: J. Cassaigne
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09.00-09.45
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Florent Hivert
An analogue of the plastic monoid for binary search trees
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09.45-10.15
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Anouk Bergeron-Brlek, Srecko Brlek, Annie Lacasse,
Xavier Provencal
Patterns in smooth tilings
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10.15-10.45
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Coffee
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Session 13 - Chair: J. Currie
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10.45-12.45
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Vesa Halava
Decidability in infinite Post correspondence problem
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Tero Harju, Dirk Nowotka
About Duval extensions
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Stepan Holub
A proof of Duval's conjecture
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Eduardo Moreno
Lyndon words and de Bruijn sequences in a subshift of finite type
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12.45-14.00
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Lunch
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Session 14 - Chair: Ch. Reutenauer
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14.00-14.30
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D.S. Ananichev, I.V. Petrov
Quest for short synchronizing words and short collapsing words
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14.30-15.15
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Filippo Mignosi
The multidimensional critical factorization theorem
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15.15-16.15
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Coffee
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