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Sibirskii Matematicheskii Zhurnal, 1969, Volume 10, Number 3, Pages 685–691
(Mi smj5670)
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The zeros of the gradient and the zeros of the Hessian of a harmonic function
A. Yanushauskas
Received: 14.11.1967
Citation:
A. Yanushauskas, “The zeros of the gradient and the zeros of the Hessian of a harmonic function”, Sibirsk. Mat. Zh., 10:3 (1969), 685–691; Siberian Math. J., 10:3 (1969), 497–501
Linking options:
https://www.mathnet.ru/eng/smj5670 https://www.mathnet.ru/eng/smj/v10/i3/p685
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