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LATA
2009
Springer
14 years 3 months ago
A Series of Run-Rich Strings
We present a new series of run-rich strings, and give a new lower bound 0.94457567 of the maximum number of runs in a string. We also introduce the general conjecture about a asymp...
Wataru Matsubara, Kazuhiko Kusano, Hideo Bannai, A...
LATA
2009
Springer
14 years 3 months ago
On Extended Regular Expressions
d abstract) Benjamin Carle, Paliath Narendran and Colin Scheriff Dept. of Computer Science University at Albany–SUNY Albany, NY 12222 June 19, 2007 In this paper we extend the ...
Benjamin Carle, Paliath Narendran
LATA
2009
Springer
14 years 3 months ago
On a Family of Morphic Images of Arnoux-Rauzy Words
Abstract. In this paper we prove the following result. Let s be an infinite word on a finite alphabet, and N ≥ 0 be an integer. Suppose that all left special factors of s longe...
Michelangelo Bucci, Alessandro De Luca
LATA
2009
Springer
14 years 3 months ago
Automata on Gauss Words
In this paper we investigate the computational complexity of knot theoretic problems and show upper and lower bounds for planarity problem of signed and unsigned knot diagrams repr...
Alexei Lisitsa, Igor Potapov, Rafiq Saleh
LATA
2009
Springer
14 years 1 months ago
Nested Counters in Bit-Parallel String Matching
Many algorithms, e.g. in the field of string matching, are based on handling many counters, which can be performed in parallel, even on a sequential machine, using bit-parallelism...
Kimmo Fredriksson, Szymon Grabowski