. . . . . . . . . . . . . "Lionel Cooper (mathematician)" . . . . . . . . . . . . . . . . . . "Lionel Cooper (mathematician)" . . "1979" . . . . "1915-12-27" . . . "Lionel Cooper" . . . . . . . . . . "1915" . "1979-08-08" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .