Nicolas Bitar

dblp:239/5811 · also Nicolás Bitar · DBLP profile ↗
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3ranked-venue papers
2as first author
3since 2021 · last 2024
0000-0002-3460-9442ORCID · corroborated

Domains — the database's venue-derived domains; a paper can count in several

Theory of computation · 3 · 2 first-author · 3 since 2021
YearPublicationVenuePosition
2024 Contributions to the Domino Problem: Seeding, Recurrence and Satisfiability
abstract
We study the seeded domino problem, the recurring domino problem and the $k$-SAT problem on finitely generated groups. These problems are generalization of their original versions on $\mathbb{Z}^2$ that were shown to be undecidable using the domino problem. We show that the seeded and recurring domino problems on a group are invariant under changes in the generating set, are many-one reduced from the respective problems on subgroups, and are positive equivalent to the problems on finite index subgroups. This leads to showing that the recurring domino problem is decidable for free groups. Coupled with the invariance properties, we conjecture that the only groups in which the seeded and recurring domino problems are decidable are virtually free groups. In the case of the $k$-SAT problem, we introduce a new generalization that is compatible with decision problems on finitely generated groups. We show that the subgroup membership problem many-one reduces to the $2$-SAT problem, that in certain cases the $k$-SAT problem many one reduces to the domino problem, and finally that the domino problem reduces to $3$-SAT for the class of scalable groups.
Nicolas Bitar
STACS1
2023 Domino Snake Problems on Groups
Nathalie Aubrun, Nicolas Bitar
FCT2
2022 Computational Complexity of Biased Diffusion-Limited Aggregation
Nicolas Bitar, Eric Goles Ch., Pedro Montealegre-Barba
SIAM J. Discret. Math.1