David Hockney the Order of Merit, an honour restricted to 24 members at any one time for their contributions to the arts and sciences. He was a Distinguished Honoree of the National Arts Association, Los Angeles, in 1991 and received the First Annual Award of Achievement from the Archives of American Art, Los Angeles, in 1993. He was appointed to the Board of Trustees of the American Associates of the Royal Academy Trust, New York in 1992 and was given a Foreign Honorary Membership to the American Academy of Arts and Sciences, Cambridge, Massachusetts in 1997. In 2003, Hockney was awarded the
Group ring Group ring In algebra, a group ring is a free module and at the same time a ring, constructed in a natural way from any given ring and any given group. As a free module, its ring of scalars is the given ring, and its basis is one-to-one with the given group. As a ring, its addition law is that of the free module and its multiplication extends "by linearity" the given group law on the basis. Less formally, a group ring is a generalization of a given group, by attaching to each element of the group a "weighting factor"