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Isaac Newton Institute for Mathematical Sciences

Semantics of Computation

1 July - 31 December 1995

Organisers: S Abramsky (Imperial College, London), G Kahn (INRIA, Sophia-Antipolis), J C Mitchell (Stanford), A M Pitts (Cambridge)

Semantics of Computation Seminar

Friday 17 November, 2:15 pm

Factorization Systems on Domains

Mathias Kegelmann (Birmingham)

I will present a category of domains containing a category of Scott-continuous functions and one of stable functions as full subcategories. To this end the order of each domain is enriched by a factorization system. The morphisms can then be described in an algebraic and a generalized topological way. At the end I will give an outline of the proof that the bifinite objects form a cartesian closed subcategory. It contains all Scott domains (with Scott-continuous functions) and all dI-domains (with stable functions).

This work builds on results by Francois Lamarche (`A large category of domains').

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