STOCKHOLM, Sweden (AP) _ Three Americans and a Swede were awarded the 2003 Rolf Schock Prizes for their work in logic, philosophy, mathematics, art and music.

The winners will split the biannual $200,000 prize, and will receive their awards Oct. 23 from Sweden's Princess Christina in Stockholm, it was announced Thursday.

American artist Susan Rothenberg was given the visual arts prize for her work that ``humbly seeks to understand how the world is put together.''

Swedish mezzo-soprano Anne Sofie von Otter was cited for her achievements in singing, including her ``dazzling technique and exceptional ear for languages.''

Solomon Feferman of Stanford University in Palo Alto, Calif., was honored for his work in mathematics, and Richard P. Stanley of the Massachusetts Institute of Technology for his work on the relationship of algebra to geometry.

The prizes were created after Schock, who died in 1986, specified that half of his estate should be used to fund them. They have been awarded biannually since 1993 by the Royal Swedish Academy of Sciences, the Royal Swedish Academy of Fine Arts and the Royal Swedish Academy of Music.

Born in France in 1933, Schock emigrated to the United States and studied geology, psychology and mathematics at the University of New Mexico, and studied at the University of California, Berkeley, and UCLA. He moved to Sweden in 1964 where he received philosophy degrees from Stockholm University and Uppsala University.