2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/4550Studies of disks around young brown dwarfs are of paramount importance to our understanding of the origin, diversity and early evolution of sub-stellar objects. Here we present first results from a systematic search for disk emission in a spectroscopically confirmed sample of young objects near or below the sub-stellar boundary in a variety of star-forming regions. Our VLT and Keck L'-band observations of the sigma Orionis and TW Hydrae associations suggest that if a majority of brown dwarfs are born with disks, at least the inner regions of those disks evolve rapidly, possibly clearing out within a few million years.to appear in proceedings of the IAU Symposium 211 on "Brown Dwarfs", ASP Conference SeriesAstrophysicstext