Z. I. Kozlova, “Certain <nobr>$\Delta\Sigma$</nobr>-operations whose bases are obtained by uniting the chains of the base of the original operation”, Dokl. Akad. Nauk SSSR, 1969, Volume 188, Number 5,Pages <nobr>1001

MATHEMATICS

Certain $\Delta\Sigma$-operations whose bases are obtained by uniting the chains of the base of the original operation

Z. I. Kozlova

Volgograd State Pedagogical Institute

UDC: 519.52

Presented: L. V. Kantorovich
Received: 30.12.1968