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Boundary behavior of positive harmonic functions in balls of Rn

Published online by Cambridge University Press:  22 January 2016

Michael Von Renteln*
Affiliation:
Mathematisches Institut der Universität, D-6300 Giessen, West-Germany
*
Mathematische Institut I der Universität, D-7500 Karlsruhe, West-Germany
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Let Rn be the real n-dimensional euclidean space. Elements of Rn are denoted by x = (xl • • •, xn), and ‖ x ‖ denotes the euclidean norm of x.

The open ball B(x, r) with center x and radius r is defined by

Type
Research Article
Copyright
Copyright © Editorial Board of Nagoya Mathematical Journal 1981

References

[ 1 ] Cargo, G.T., Angular and tangential limits of Blaschke products and their successive derivatives, Ca Mathn. J., 14 (1962), 334348.Google Scholar
[ 2 ] Helms, L.L., Introduction to potential theory, Wiley-Interscience, New York, 1969.Google Scholar
[ 3 ] Stein, E.M., Singular integrals and differentiability properties of functions, Princeton University Press, Princeton, 1970.Google Scholar