Nuclear magnetic resonance in dilute magnetic alloys and superconductors is facilitated by either high temperatures (
kT ≫ ω-
s$/, the resonance frequency for localized moments) or low
On some classes of fourth-order Bianchi equations with constant ratios of laplace invariants© A.N.
Mironov, 2013. On the basis of defining equations written out in terms of Laplace invariants