It is in the field of prime representing functions that Sato co-authored a paper with James P. Jones, Hideo Wada, and Douglas Wiens entitled "Diophantine Representation of the Set of Prime Numbers", which won them the Lester R. Ford Award in Mathematics in 1976.
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The concern of seismologists Douglas Wiens and Michael E. Wysession of Washington University in St. Louis, is that the New Madrid Fault may be becoming less active, while activity on the Wabash Fault could be increasing.