Predators and altruists arriving on jammed Riviera

Fuente: arXiv
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Autori principali: Došlić, Tomislav, Puljiz, Mate, Šebek, Stjepan, Žubrinić, Josip
Natura: Preprint
Pubblicazione: 2024
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_version_ 1866917557773008896
author Došlić, Tomislav
Puljiz, Mate
Šebek, Stjepan
Žubrinić, Josip
author_facet Došlić, Tomislav
Puljiz, Mate
Šebek, Stjepan
Žubrinić, Josip
contents The Riviera model is a combinatorial model for a settlement along a coastline, introduced recently by the authors. Of most interest are the so-called jammed states, where no more houses can be built without violating the condition that every house needs to have free space to at least one of its sides. In this paper, we introduce new agents (predators and altruists) that want to build houses once the settlement is already in the jammed state. Their behavior is governed by a different set of rules, and this allows them to build new houses even though the settlement is jammed. Our main focus is to detect jammed configurations that are resistant to predators, to altruists, and to both predators and altruists. We provide bivariate generating functions, and complexity functions (configurational entropies) for such jammed configurations. We also discuss this problem in the two-dimensional setting of a combinatorial settlement planning model that was also recently introduced by the authors, and of which the Riviera model is just a special case.
format Preprint
id arxiv_https___arxiv_org_abs_2401_01225
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Predators and altruists arriving on jammed Riviera
Došlić, Tomislav
Puljiz, Mate
Šebek, Stjepan
Žubrinić, Josip
Combinatorics
05B40, 05A15, 05A16, 82B20, 00A67
The Riviera model is a combinatorial model for a settlement along a coastline, introduced recently by the authors. Of most interest are the so-called jammed states, where no more houses can be built without violating the condition that every house needs to have free space to at least one of its sides. In this paper, we introduce new agents (predators and altruists) that want to build houses once the settlement is already in the jammed state. Their behavior is governed by a different set of rules, and this allows them to build new houses even though the settlement is jammed. Our main focus is to detect jammed configurations that are resistant to predators, to altruists, and to both predators and altruists. We provide bivariate generating functions, and complexity functions (configurational entropies) for such jammed configurations. We also discuss this problem in the two-dimensional setting of a combinatorial settlement planning model that was also recently introduced by the authors, and of which the Riviera model is just a special case.
title Predators and altruists arriving on jammed Riviera
topic Combinatorics
05B40, 05A15, 05A16, 82B20, 00A67
url https://arxiv.org/abs/2401.01225