In this paper we prove that bounded Hua-harmonic functions on tube domains that satisfy some boundary regularity condition are necessarily pluriharmonic. In doing so, we show that a similar theorem is true on one-dimensional extensions of the Heisenberg group or equivalently on the Siegel upper half-plane.
@article{hal-00001110,
author = {Bonami, Aline and Buraczewski, Dariusz and Damek, Ewa and Hulanicki, Andrzej and Jaming, Philippe},
title = {Maximum boundary regularity of bounded Hua-harmonic functions on tube domains},
journal = {HAL},
volume = {2004},
number = {0},
year = {2004},
language = {en},
url = {http://dml.mathdoc.fr/item/hal-00001110}
}
Bonami, Aline; Buraczewski, Dariusz; Damek, Ewa; Hulanicki, Andrzej; Jaming, Philippe. Maximum boundary regularity of bounded Hua-harmonic functions on tube domains. HAL, Tome 2004 (2004) no. 0, . http://gdmltest.u-ga.fr/item/hal-00001110/