Necessary and sufficient conditions for a finite propagation rate for elliptic operators
English version (Springer): Ukrainian Mathematical Journal 37 (1985), no. 5, pp 547-549.
Citation Example: Rofe-Beketov F. S. Necessary and sufficient conditions for a finite propagation rate for elliptic operators // Ukr. Mat. Zh. - 1985. - 37, № 5. - pp. 668–670.
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