Abstract:
This paper considers the problem of estimating functional parameters ak(t,x)ak(t,x), f(t,x)f(t,x) by observing a solution uε(t,x)uε(t,x) of a stochastic partial differential equation duε(t)=∑|k|⩽2pakDkxuε+fdt+εdw(t), where w(t) is a Wiener process. The asymptotic statement of the problem is considered when the noise level ε→0. In the first part of the work we determine what is considered the statistics of the problem and investigate the problem of estimating f.
Citation:
I. A. Ibragimov, R. Z. Khas'minskii, “Estimation problems for coefficients of stochastic partial differential equations. Part I”, Teor. Veroyatnost. i Primenen., 43:3 (1998), 417–438; Theory Probab. Appl., 43:3 (1999), 370–387
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