Methodology and Computing in Applied Probability, vol.15, no.2, pp.333-347, 2013 (SCI-Expanded, Scopus)
In this study, asymptotic expansions of the moments of the maximum (M(β)) of Gaussian random walk with negative drift (-β), β > 0, are established by using Bell Polynomials. In addition, the weak convergence theorem for the distribution of the random variable Y(β) ≡ 2βM(β) is proved, and the explicit form of the limit distribution is derived. Moreover, the approximation formulas for the first four moments of the maximum of a Gaussian random walk are obtained for the parameter β ∈ (0.5, 3.2] using meta-modeling. © 2011 Springer Science+Business Media, LLC.