Yury Yershov
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Yuri L. Ershov or Yershov (Юрий Леонидович Ершов, born January 5, 1940) is a Russian mathematician. He was born in Novosibirsk.
It has been widely reported that "In 1955 he developed together with L. N. Korolev, L.D. Panova, V.D. Poderiugin and V.M. Kurochkin one of the first programming languages called ΠΠ for the BESM computer." This is incorrect, the contributor to that project with that surname was the late Andrei P. Ershov; Yuri L. Ershov was 15 when that work was done. Yuri L. Ershov is Editor in Chief of the Siberian Mathematics Journal and an editor of the Russian journal Algebra y Logika (Algebra and Logic). His Ph.D. thesis, On Decidabiliity of Elementary Theories, advisor Anatolij Mal'tsev, was accepted by the Novosibirsk State University in 1963.