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JOURNALS // Matematicheskii Sbornik // Archive
Mat. Sb. (N.S.), 1975 Volume 98(140), Number 4(12), Page 635 (Mi sm3728)
Letter to the Editor

P. A. Kuchment, A. A. Pankov


MSC: Primary 55F40, 55F50; Secondary 18D35

Received: 14.07.1975


 English version: Mathematics of the USSR-Sbornik, 1975, 27:4, 564

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© Steklov Math. Inst. of RAS, 2025