Korean J. Math. Vol. 30 No. 3 (2022) pp.459-465
DOI: https://doi.org/10.11568/kjm.2022.30.3.459

More properties of weighted Berezin transform in the unit ball of $\mathbb C^n$

Main Article Content

Jaesung Lee

Abstract

We exhibit various properties of the weighted Berezin operator $T_{\alpha}$ and its iteration $T_{\alpha}^{k}$ on $L^{p}(\tau)$, where $\alpha > -1$ and $\tau$ is the invariant measure on the complex unit ball $B_n$. Iterations of $T_{\alpha}$ on $L^{1}_{R}(\tau)$ the space of radial integrable functions have performed important roles in proving $\mathcal{M}$-harmonicity of bounded functions with invariant mean value property. We show differences between the case of $1<p<\infty$ and $p=1, \infty$ under the infinite iteration of $T_{\alpha}$ or the infinite summation of iterations, most of which are extensions or related assertions to the propositions of the previous results.



Article Details

References

[1] P. Ahern, M. Flores and W. Rudin, An invariant volume-mean-value property, J. Funct. Anal. 111 (2) (1993), 380–397. Google Scholar

[2] H. Furstenberg, A Poisson formula for semi-simple Lie groups, Ann. of Math. 77 (2) (1963), 335–386. Google Scholar

[3] H. Furstenberg, Boundaries of Riemannian symmetric spaces, Symmetric spaces (Short Courses, Washington Univ., St. Louis, Mo., 1969–1970), Google Scholar

[4] J. Lee., Weighted Berezin transform in the polydisc, J. Math. Anal. Appl. 338 (2) (2008), 1489– 1493. Google Scholar

[5] J. Lee, A Characterization of M-harmonicity, Bull. Korean Math. Soc. 47 (2010), 113–119. Google Scholar

[6] J. Lee, Iterates of weighted Berezin transform under invariant measure in the unit ball, Korean J. Math. 28 (3) (2020), pp. 449–457. Google Scholar

[7] W. Rudin, Function theory in the unit ball of Cn, Springer-Verlag, New York Inc., 1980. Google Scholar