2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/158479A coding problem for correlated information sources is investigated. Messages emitted from two correlated sources are jointly encoded, and delivered to two decoders. Each decoder has access to one of the two messages to enable it to reproduce the other message. The rate-distortion function for the coding problem and its interesting properties are clarified.13 pages in double-column format, 1 figure, submitted to IEICE Transactions on FundamentalsInformation Theorytext