Transition systems over games

Add to your list(s) Download to your calendar using vCal

• Paul Levy, University of Birmingham
• Friday 28 November 2014, 16:00-17:00
• Room FW26, Computer Laboratory, William Gates Building.

If you have a question about this talk, please contact Jonathan Hayman.

We describe a framework for game semantics combining operational and denotational accounts. A game is a bipartite graph of “passive” and “active” positions, or a categorical variant with morphisms between positions.

The operational part of the framework is given by a labelled transition system in which each state sits in a particular position of the game. From a state in a passive position, transitions are labelled with a valid O-move from that position, and take us to a state in the updated position. Transitions from states in an active position are likewise labelled with a valid P-move, but silent transitions are allowed, which must take us to a state in the same position.

The denotational part is given by a “transfer” from one game to another, a kind of program that converts moves between the two games, giving an operation on strategies. The agreement between the two parts is given by a relation called a “stepped bisimulation”.

The framework is illustrated by an example of substitution within a lambda-calculus.

This talk is part of the Logic and Semantics Seminar (Computer Laboratory) series.

This talk is included in these lists:

• All Talks (aka the CURE list)
• Cambridge talks
• Computing and Mathematics
• Department of Computer Science and Technology talks and seminars
• Interested Talks
• Logic and Semantics Seminar (Computer Laboratory)
• Room FW26, Computer Laboratory, William Gates Building
• School of Technology
• Trust & Technology Initiative - interesting events
• bld31
• yk373's list

Note that ex-directory lists are not shown.