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On large deviations for small noise It\^o processes

Probability 2015-01-06 v3

Abstract

The large deviation principle in the small noise limit is derived for solutions of possibly degenerate It\^o stochastic differential equations with predictable coefficients, which may depend also on the large deviation parameter. The result is established under mild assumptions using the Dupuis-Ellis weak convergence approach. Applications to certain systems with memory and to positive diffusions with square-root-like dispersion coefficient are included.

Keywords

Cite

@article{arxiv.1212.3223,
  title  = {On large deviations for small noise It\^o processes},
  author = {Alberto Chiarini and Markus Fischer},
  journal= {arXiv preprint arXiv:1212.3223},
  year   = {2015}
}

Comments

30 pages

R2 v1 2026-06-21T22:54:03.639Z