“…It was introduced by Shannon [2] and Wiener [3], and developed subsequently by Ebrahimi and Pellerey [4], Ebrahimi [5], Ebrahimi and Kirmani [6], Crescenzo and Longobardi [7], Navarro et al [8], etc. Furthermore, some generalizations of H X have been proposed, see, for example, Di Crescenzo and Longobardi [9,10], Nanda and Paul [11][12][13], Abbasnejad et al [14], Kundu et al [15], Kumar and Taneja [16], Khorashadizadeh et al [17], Nanda et al [18], Kayal [19], Vineshkumar [20], Kang [21], Kang and Yan [22], Yan and Kang [23], and others.…”