Reviews of topical problems

P.B. Ivanov, E.V. Mikheeva, V.N. Lukash, A.M. Malinovsky, S.V. Chernov, A.S. Andrianov, V.I. Kostenko, S.F. Likhachev “Interferometric observations of supermassive black holes in the millimeter wave band” Phys. Usp. 62 423–449 (2019)

A.G. Drutskoy “Experiments at the ILC linear collider: expected physical results” Phys. Usp. 62 450–464 (2019)

P.S. Strelkov “Experimental plasma relativistic microwave electronics” Phys. Usp. 62 465–486 (2019)

Methodological notes

V.P. Makarov, A.A. Rukhadze “Material equations and Maxwell equations for isotropic media; waves with negative group velocity and negative values of ε (ω) and μ (ω)” Phys. Usp. 62 487–495 (2019)

V.M. Rozenbaum, I.V. Shapochkina, L.I. Trakhtenberg “Green's function method in the theory of Brownian motors” Phys. Usp. 62 496–509 (2019)

V.Yu. Shishkov, E.S. Andrianov, A.A. Pukhov, A.P. Vinogradov, A.A. Lisyansky “Relaxation of interacting open quantum systems” Phys. Usp. 62 510–523 (2019)

Personalia

N.E. Andreev, A.V. Gurevich, L.M. Zelenyi, K.P. Zybin, G.A. Mesyats, N.N. Kolachevsky, O.N. Krokhin, E.A. Kuznetsov, V.I. Okulov, E.A. Pamyatnykh, L.P. Pitaevskii, S.A. Uryupin “In memory of Viktor Pavlovich Silin” Phys. Usp. 62 524–525 (2019)

Physics news on the internet

Yu.N. Eroshenko “Physics news on the Internet (based on electronic preprints)” Phys. Usp. 62 526–527 (2019)