68. Static core and transfer theory

Definition SRWT.6 (Interaction graph). Let \[G=(V,E,s,t)\] be a finite directed multigraph. Parallel edges and self-loops are allowed. The vertex set indexes strata, participants, artifacts, models, instruments, or subworkspaces. An edge \(e:i\to j\) denotes an admissible directed translation or influence channel from \(i\) to \(j\).