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J. H. Ramirez-Gonzalez
Weighted sub-fractional Brownian motion was introduced as a centered Gaussian process with covariance $$ Q_{a,b}(s,t)=\frac{1}{1-b}\int_0^{s\wedge t}u^a[(s-u)^b+(t-u)^b-(s+t-2u)^b]…