Sova, M. Semigroups and cosine function of normal operators in Hilbert spaces. (English) Zbl 0172.40606 Čas. Pěst. Mat. 93, 437-458 (1968). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 4 Documents Keywords:functional analysis × Cite Format Result Cite Review PDF Full Text: DOI EuDML