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Revisiting Common Randomness, No-signaling and Information Structure in Decentralized Control

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arxiv 2402.16862 v1 pith:6BOJVSYQ submitted 2024-01-20 cs.IT cs.SYeess.SYmath.IT

Apurva Dhingra , Ankur A. Kulkarni This is my paper · ORCID
classification cs.ITcs.SYeess.SYmath.IT
keywords no-signalingdecentralizedinformationcommonconditionrandomnessstructureachieved
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This work revisits the no-signaling condition for decentralized information structures. We produce examples to show that within the no-signaling polytope exist strategies that cannot be achieved by passive common randomness but instead require agents to either share their observations with a mediator or communicate directly with each other. This poses a question mark on whether the no-signaling condition truly captures the decentralized information structure in the strictest sense.

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Cited by 1 Pith paper

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  1. Virtual Signaling of CSIT via Non-Signaling Assistance

    cs.IT 2025-06 accept novelty 8.0 of 10

    With non-signaling assistance, a channel with non-causal CSIT has the same capacity as if the receiver also knew the state, and broadcast channels behave as if the other user's message were receiver side information.

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