What can and cannot be computed in a distributed system is a complex function of the system's communication model, timing model, and failure model. Considering a canonical …
This paper studies notions of locality that are inherent to the specification of distributed tasks by identifying fundamental relationships between the various scales of computation, from the …
Consider a distributed system with $ n $ processors out of which $ f $ can be Byzantine faulty. In the approximate agreement task, each processor $ i $ receives an input value $ x_i …
An elegant strategy for proving impossibility results in distributed computing was introduced in the celebrated FLP consensus impossibility proof. This strategy is local in nature as at …
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 …
Y Yue, X Liu, F Lei, J Wu - Mathematics, 2022 - mdpi.com
In this work, we extend the topology-based framework and method for the quantification and classification of general resilient asynchronous complexity. We present the arbitrary resilient …
The class of robot convergence tasks has been shown to capture fundamental aspects of fault-tolerant computability. A set of asynchronous robots that may fail by crashing, start from …
Y Emek, J Seidel, R Wattenhofer - … 2014, Copenhagen, Denmark, July 8-11 …, 2014 - Springer
What can be computed in an anonymous network, where nodes are not equipped with unique identifiers? It turns out that the answer to this question depends on the commitment …
Y Yue, F Lei, X Liu, J Wu - Mathematics, 2020 - mdpi.com
In this paper, we establish the asynchronous computability theorem in d-solo system by borrowing concepts from combinatorial topology, in which we state a necessary and …