On the microlocal regularity of the analytic vectors for “sums of squares” of vector fields

We prove via FBI-transform a result concerning the microlocal Gevrey regularity of analytic vectors for operators sums squares vector fields with real-valued real coefficients Hörmander type, thus providing version, in category, due to Derridj (Pac J Math 302(2):511–543, 2019) problem local analytic/Gevrey coefficients.