activity
20132026
most citedFewer runs than word length

3 citations · 6 across the 9 of their papers we have counts for

collaborators

10 papers

cs.FL2026

Subsequence Analysis Problems for Binary Parikh Matrices

Szilárd Zsolt Fazekas, Xinhao Huang, Robert Mercaş

The universality index corresponding to a word is the largest integer k such that every word of length k over the given alphabet occurs in it as a subsequence. Relative to language…

math.CO2026

Binary Words Containing Few Abelian Squares

Szilard Zsolt Fazekas, Adam Mammoliti, Robert Mercas +1

Fici and Saarela ([2]) conjectured that a binary word of length n contains at least abelian squares. We slightly extend this conjecture and show that it holds…

math.CO2024

Ternary is Still Good for Parikh Matrices

Robert Mercaş, Wen Chean Teh

The focus of this work is the study of Parikh matrices with emphasis on two concrete problems. In the first part of our presentation we show that a conjecture by Dick at al. in 202…

cs.FL2024

Subsequence Matching and Analysis Problems for Formal Languages

Szilárd Zsolt Fazekas, Tore Koß, Florin Manea +2

In this paper, we study a series of algorithmic problems related to the subsequences occurring in the strings of a given language, under the assumption that this language is succin…

cs.FL2023

Sweep Complexity Revisited

Szilárd Zsolt Fazekas, Robert Mercaş

We study the sweep complexity of DFA in one-way jumping mode answering several questions posed earlier. This measure is the number of times in the worst case that such machines hav…

cs.DS2018

Alignment-free sequence comparison using absent words

Panagiotis Charalampopoulos, Maxime Crochemore, Gabriele Fici +2

Sequence comparison is a prerequisite to virtually all comparative genomic analyses. It is often realised by sequence alignment techniques, which are computationally expensive. Thi…

cs.DM2016

A note on Thue games

Robert Mercaş, Dirk Nowotka

In this work we improve on a result from~\cite{GryKosZma15}. In particular, we investigate the situation where a word is constructed jointly by two players who alternately append l…

cs.DS2015

Linear-Time Sequence Comparison Using Minimal Absent Words & Applications

Maxime Crochemore, Gabriele Fici, Robert Mercaş +1

Sequence comparison is a prerequisite to virtually all comparative genomic analyses. It is often realized by sequence alignment techniques, which are computationally expensive. Thi…

cs.DM2014★ 3 cited

Fewer runs than word length

Maxime Crochemore, Robert Mercas

The work takes another look at the number of runs that a string might contain and provides an alternative proof for the bound. We also propose another stronger conjecture that stat…

cs.FL2013★ 3 cited

Binary Patterns in Binary Cube-Free Words: Avoidability and Growth

Robert Mercas, Pascal Ochem, Alexei V. Samsonov +1

The avoidability of binary patterns by binary cube-free words is investigated and the exact bound between unavoidable and avoidable patterns is found. All avoidable patterns are sh…