深澤正彰（東京大学大学院数理科学研究科）
	Confidence intervals for diffusions
		Asymptotic expansions of studentized maximum likelihood estimators in general statistical model are investigated in terms of constructing confidence intervals. The result is applied to the construction of second-order correct confidence intervals for ergodic and small diffusions. Estimators of the coefficients of the asymptotic expansion in multi-dimensional symmetric ergodic diffusion models are proposed.