Leonid Veniaminovich Keldysh (born 7.04.1931) is a Soviet theoretical physicist and an academician of the USSR Academy of Sciences (1976, corresponding member 1968).
Veniamin Moiseyevich Kelman (born 7.02.1915) is a Soviet experimental physicist and an academician of the Academy of Sciences of the Kazakh SSR (1962).
Rem Viktorovich Khokhlov (15.07.1926 — 8.08.1977) was a Soviet physicist, one of the founders of nonlinear optics, an academician (1974; corresponding member 1966).
Orest Danilovich Khvolson (4.12.1852—11.05.1934) was a Soviet physicist, an honorary academician (1920) and a corresponding member of the St Petersburg Academy of Sciences (1895).