ON THE SUM OF GAUSSIAN MARTINGALE AND AN INDEPENDENT FRACTIONAL BROWNIAN MOTION.

In the same context as in the seminal paper [P. Cheridito, Bernoulli, 7 (2001), pp. 913-934], we are concerned with the semimartingale property of the sum of some Gaussian martingale and an independent fractional Brownian motion with Hurst parameter H = (0, 1). At the same time, we emphasize that the Markov property is lost even if the martingale owns it. [ABSTRACT FROM AUTHOR]