[HTML][HTML] A topological perspective on distributed network algorithms

A Castañeda, P Fraigniaud, A Paz, S Rajsbaum… - Theoretical Computer …, 2021 - Elsevier
More than two decades ago, combinatorial topology was shown to be useful for analyzing
distributed fault-tolerant algorithms in shared memory systems and in message passing …

[HTML][HTML] Wait-free approximate agreement on graphs

D Alistarh, F Ellen, J Rybicki - Theoretical Computer Science, 2023 - Elsevier
Approximate agreement is one of the few variants of consensus that can be solved in a wait-
free manner in asynchronous systems where processes communicate by reading and …

Tight bounds for asymptotic and approximate consensus

M Függer, T Nowak, M Schwarz - Journal of the ACM (JACM), 2021 - dl.acm.org
Agreeing on a common value among a set of agents is a fundamental problem in distributed
computing, which occurs in several variants: In contrast to exact consensus, approximate …

Convex Consensus with Asynchronous Fallback

A Constantinescu, D Ghinea, R Wattenhofer… - Cryptology ePrint …, 2023 - eprint.iacr.org
Convex Consensus (CC) allows a set of parties to agree on a value $ v $ inside the convex
hull of their inputs with respect to a predefined abstract convexity notion, even in the …

The impossibility of approximate agreement on a larger class of graphs

S Liu - 26th International Conference on Principles of …, 2023 - drops.dagstuhl.de
Approximate agreement is a variant of consensus in which processes receive input values
from a domain and must output values in that domain that are sufficiently close to one …

Continuous tasks and the asynchronous computability theorem

HR Galeana, S Rajsbaum… - 13th Innovations in …, 2022 - drops.dagstuhl.de
Abstract The celebrated 1999 Asynchronous Computability Theorem (ACT) of Herlihy and
Shavit characterized distributed tasks that are wait-free solvable and uncovered deep …

Brief announcement: variants of approximate agreement on graphs and simplicial complexes

J Ledent - Proceedings of the 2021 ACM Symposium on …, 2021 - dl.acm.org
Approximate agreement is a weaker version of consensus where two or more processes
must agree on a real number within a distance ε of each other. Many variants of this task …

Forming sequences of patterns with luminous robots

S Das, P Flocchini, G Prencipe, N Santoro - IEEE Access, 2020 - ieeexplore.ieee.org
The extensive studies on computing by a team of identical mobile robots operating in the
plane in Look-Compute-Move cycles have been carried out mainly in the traditional OBLOT …

Towards Round-Optimal Approximate Agreement on Trees

M Fuchs, D Ghinea, Z Parsaeian - arxiv preprint arxiv:2502.05591, 2025 - arxiv.org
Ensuring consistency in distributed systems, especially in adversarial environments, is a
fundamental challenge in theoretical computing. Approximate Agreement (AA) is a key …

Knowledge in multi-robot systems: an interplay of dynamics, computation and communication

G Cignarale, S Felber, E Goubault, BH Flores… - arxiv preprint arxiv …, 2025 - arxiv.org
We show that the hybrid systems perspective of distributed multi-robot systems is compatible
with logical models of knowledge already used in distributed computing, and demonstrate its …