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Found 4 Documents (Results 1–4)

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Funct. Anal. Appl. 52, No. 3, 203-213 (2018); translation from Funkts. Anal. Prilozh. 52, No. 3, 53-65 (2018).
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Russ. Math. Surv. 70, No. 1, 165-167 (2015); translation from Usp. Mat. Nauk. 70, No. 1, 179-180 (2015).
MSC:  47E05
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