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Large Deviations for Gaussian Stochastic Processes with Sample Paths in Orlicz Spaces

Published online by Cambridge University Press:  20 November 2018

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Let X be a complete, separable metric space, and a family of probability measures on the Borel subsets of X. We say that obeys the large deviation principle (LDP) with a rate function I( · ) if there exists a function I( · ) from X into [0, ∞] satisfying:

  • (i) 0 ≦ I(x) ≦ ∞ for all xX,

  • (ii) I( · ) is lower semicontinuous,

  • (iii) for each 1 < ∞ the set {x:I(x)1} is compact set in X,

  • (iv) for each closed set CX

  • (v) for each open set UX

It is easy to see that if A is a Borel set such that

then

where A0 and Ā are respectively the interior and the closure of the Borel set A.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1988

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