TY - JOUR

T1 - Modularity of behaviours for mathematical operational semantics

AU - Kick, Marco

AU - Power, John

PY - 2004/12/11

Y1 - 2004/12/11

N2 - Some years ago, Turi and Plotkin gave a precise mathematical formulation of a notion of previous termstructuralnext term operational semantics: their formulation is equivalent to a distributive law of the free monad on a signature over the cofree copointed endofunctor on a previous termbehaviournext term endofunctor. From such a distributive law, one can readily induce a distributive law of the monad over the cofree comonad on the previous termbehaviournext term endofunctor, and much of their analysis can be carried out in the latter terms, adding a little more generality that proves to be vital here. Here, largely at the latter level of generality, we investigate the situation in which one has two sorts of previous termbehavioursnext term, with operational semantics possibly interacting with each other. Our leading examples are given by combining action and timing, with a modular account of the operational semantics for the combination induced by that of each of the two components. Our study necessitates investigation and new results about products of comonads and liftings of monads to categories of coalgebras for the product of comonads, providing constructions with which one can readily calculate.

AB - Some years ago, Turi and Plotkin gave a precise mathematical formulation of a notion of previous termstructuralnext term operational semantics: their formulation is equivalent to a distributive law of the free monad on a signature over the cofree copointed endofunctor on a previous termbehaviournext term endofunctor. From such a distributive law, one can readily induce a distributive law of the monad over the cofree comonad on the previous termbehaviournext term endofunctor, and much of their analysis can be carried out in the latter terms, adding a little more generality that proves to be vital here. Here, largely at the latter level of generality, we investigate the situation in which one has two sorts of previous termbehavioursnext term, with operational semantics possibly interacting with each other. Our leading examples are given by combining action and timing, with a modular account of the operational semantics for the combination induced by that of each of the two components. Our study necessitates investigation and new results about products of comonads and liftings of monads to categories of coalgebras for the product of comonads, providing constructions with which one can readily calculate.

UR - http://dx.doi.org/10.1016/j.entcs.2004.02.030

U2 - 10.1016/j.entcs.2004.02.030

DO - 10.1016/j.entcs.2004.02.030

M3 - Article

VL - 106

SP - 185

EP - 200

JO - Electronic Notes in Theoretical Computer Science

JF - Electronic Notes in Theoretical Computer Science

SN - 1571-0661

ER -