Sobolevskii, P. E. Fractional powers of coercively positive sums of operators. (English. Russian original) Zbl 0333.47010 Sov. Math., Dokl. 16, 1638-1641 (1975); translation from Dokl. Akad. Nauk SSSR 225, 1271-1274 (1975). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 26 Documents MSC: 47A60 Functional calculus for linear operators 47F05 General theory of partial differential operators 47B47 Commutators, derivations, elementary operators, etc. PDFBibTeX XMLCite \textit{P. E. Sobolevskii}, Sov. Math., Dokl. 16, 1638--1641 (1975; Zbl 0333.47010); translation from Dokl. Akad. Nauk SSSR 225, 1271--1274 (1975)