In this paper,we discussed ω-extension of bicyclic semigroups.Two types of this extension are proposed.In §2 we discussed strong semilattice extension and the
In this paper, it is proved that the commutator Hβ,b which is generated by the n-dimensional fractional Hardy operator Hβ and b ∈(Λ)α(Rn) is hounded from L
A magnesia adsorbent was prepared from straw pulp black liquor and magnesium sulfate for the first time, and its adsorption of phenol from aqueous solution was