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On Sessions and Infinite Data

Paula Severi ; Luca Padovani ; Emilio Tuosto ; Mariangiola Dezani-Ciancaglini.

We define a novel calculus that combines a call-by-name functional core with session-based communication primitives. We develop a typing discipline that guarantees both normalisation of expressions and progress of processes and that uncovers an unexpected interplay between evaluation and&nbsp;[&hellip;]

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Honesty by Typing

Massimo Bartoletti ; Alceste Scalas ; Emilio Tuosto ; Roberto Zunino.

We propose a type system for a calculus of contracting processes. Processes can establish sessions by stipulating contracts, and then can interact either by keeping the promises made, or not. Type safety guarantees that a typeable process is honest - that is, it abides by the contracts it has&nbsp;[&hellip;]

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On Resolving Non-determinism in Choreographies

Laura Bocchi ; Hernan Melgratti ; Emilio Tuosto.

Choreographies specify multiparty interactions via message passing. A realisation of a choreography is a composition of independent processes that behave as specified by the choreography. Existing relations of correctness/completeness between choreographies and realisations are based on models where&nbsp;[&hellip;]

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A Theory of Formal Choreographic Languages

Franco Barbanera ; Ivan Lanese ; Emilio Tuosto.

We introduce a meta-model based on formal languages, dubbed formal choreographic languages, to study message-passing systems. Our framework allows us to generalise standard constructions from the literature and to compare them. In particular, we consider notions such as global view, local view, and&nbsp;[&hellip;]

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