Flag Hardy spaces and Marcinkiewicz multipliers on the Heisenberg group
Flag Hardy spaces and Marcinkiewicz multipliers on the Heisenberg group
Marcinkiewicz multipliers are L p bounded for 1 < p < ∞ on the Heisenberg group H n ≃ C n × R (D. Muller, F. Ricci and E. M. Stein [25], [26]).This is surprising in that this class of multipliers is invariant under a two parameter group of dilations …