On an analog of Plancherel’s theorem and the qualitative character of the spectrum of a self-adjoint operator. (Russian) Zbl 0481.47017
Partial differential equations: differential equations and numerical mathematics, Work Collect. Conf., Novosibirsk 1978, 205-209 (1980).
MSC:
47B25 | Linear symmetric and selfadjoint operators (unbounded) |
47B15 | Hermitian and normal operators (spectral measures, functional calculus, etc.) |