Yoram Moses
Wed 05 Sep 2018, 15:00 - 16:00
MF2, School of Informatics

If you have a question about this talk, please contact: Bob Fisher (rbf)

A reception in MF2.

Indistinguishablity is a fundamental notion in distributed                                                               
systems. It serves as the central tool in impossibility proofs and lower                                                           
bounds. Indeed, indistinguishability can be used to determine when actions                                                         
are disallowed. Its dual, which corresponds to the knowledge that a process                                                        
has, plays the opposite role, and determines when actions are allowed. This                                                        
talk will discuss the relation between knowledge and action in distributed                                                         
systems, and present several theorems that apply across all models of                                                              
distributed computation. The connections drawn also relate a semantic                                                              
approach, which can be viewed in terms a modal logic, and algorithmic issues.