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JOURNALS // Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika // Archive

Izv. Vyssh. Uchebn. Zaved. Mat., 1968 Number 3, Pages 80–85 (Mi ivm3291)

Comparison of the strength of certain $\Delta\Sigma$-operations in connection with the generalization of certain multiple separability theorems.

Yu. I. Romanov

Volgograd

UDC: 519.50

Received: 19.08.1966



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