We establish a precise Schwarz lemma for real-valued and bounded harmonic functions in the real unit ball of dimension n. This extends Chen's Schwarz-Pick lemma for real-valued and bounded planar harmonic mapping.
Shaoyu DAI
,
Huaihui CHEN
. A SCHWARZ LEMMA FOR HARMONIC FUNCTIONS IN THE REAL UNIT BALL[J]. Acta mathematica scientia, Series B, 2019
, 39(5)
: 1339
-1344
.
DOI: 10.1007/s10473-019-0512-z
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