“…When n = 1, some fundamental function/operator-theoretic properties of HC s have been discovered in [29,41,43,46,49,50]. However, when n > 1, as far as we know, there is only one paper partially touching this holomorphic space -more precisely - [11] has established the corona and multiplication theorems for HC s under s ∈ (0, n/2) extending the cases s ∈ (−1, 0) (cf.…”