Über die reellen Lösungen der Gleichung \(\frac {\partial^2 u}{\partial x^2} + \frac{\partial^2 u}{\partial y^2} = 0\).

DOI10.1007/BF01450692zbMath39.0432.01MaRDI QIDQ1492056

E. Study

Publication date: 1909

Published in: Mathematische Annalen (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/158383

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