To Valentin S. Afraimovich on the Occasion of His 80$^{th}$ Birthday

    Received 16 June 2026; accepted 30 June 2026; published 14 July 2026

    2026, Vol. 22, no. 2, pp.  267-272
    This issue of RJND is dedicated to the memory of the outstanding mathematician Valentin Senderovich Afraimovich (April 2, 1945 – February 21, 2018) — our colleague and close friend — on the occasion of what would have been his 80th birthday.
    Citation: To Valentin S. Afraimovich on the Occasion of His 80$^{th}$ Birthday, Rus. J. Nonlin. Dyn., 2026, Vol. 22, no. 2, pp.  267-272
    DOI:10.20537/nd260704


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