PROBABILITY MONADS AS CODENSITY MONADS
Theory & Applications of Categories
; 38(21):811, 2022.
Article
in English
| ProQuest Central | ID: covidwho-1898308
ABSTRACT
We show from a categorical point of view that probability measures on certain measurable or topological spaces arise canonically as the extension of probability distributions on countable sets. We do this by constructing probability monads as the codensity monads of functors that send a countable set to the space of probability distributions on that set. On (pre)measurable spaces we discuss monads of probability (pre)measures and their finitely additive analogues. We also give codensity constructions for monads of Radon measures on compact Hausdorff spaces and compact metric spaces and for the monad of Baire measures on Hausdorff spaces. A crucial role in these constructions is given by integral representation theorems, which we derive from a generalized Daniell-Stone theorem.
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Collection:
Databases of international organizations
Database:
ProQuest Central
Language:
English
Journal:
Theory & Applications of Categories
Year:
2022
Document Type:
Article
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