×

Eigenfunctions of the equation \(\Delta u+\lambda f(u) = 0\). (English. Russian original) Zbl 0141.30202

Sov. Math., Dokl. 6, 1408-1411 (1965); translation from Dokl. Akad. Nauk SSSR 165, 36-39 (1965).

PDFBibTeX XMLCite